I needed to see the results of this script and was able to do so by incorporating the below:
var i=0;
function increase()
{
i++;
document.getElementById('boldstuff').innerHTML= +i;
}
<p>var = <b id="boldstuff">0</b></p>
<input type="button" onclick="increase();">
add the "script" tag above all and a closing script tag below the function end curly brace. Returning false caused firefox to hang when I tried it. All other solutions didn't show the result of the increment, in my experience.
Old question, but %l (lower-case L) worked for me in strftime: this may not work for everyone, though, as it's not listed in the Python documentation I found
For anyone coming across this question who uses Jaspersoft Studio (which, I think, is replacing iReports; it's quite similar, still freeware, just based on eclipse), look for the "Compile Report" icon on top of the editor area of your .jrxml file. Its icon, first in that line of icons, is a file with binary numbers on it (at least in version 5.6.2):
Clicking this icon will generate the .jasper file in the same directory as the .jrxml file.
If you use Android default action bar then. If you change from java then some time show previous color.
Example
Then your action bar code inside "app_bar_main". So go inside app_bar_main.xml and just add Background.
Example
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#33691e" <!--use your color -->
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_main1" />
git update-index function has several option you can find typing as below:
git update-index --help
Here you will find various option - how to handle with the function update-index.
[if you don't know the file name]
git update-index --really-refresh
[if you know the file name ]
git update-index --no-assume-unchanged <file>
will revert all the files those have been added in ignore list through.
git update-index --assume-unchanged <file>
You should not use your domain models
in your views. ViewModels
are the correct way to do it.
You need to map your domain model's necessary fields to viewmodel and then use this viewmodel in your controllers. This way you will have the necessery abstraction in your application.
If you never heard of viewmodels, take a look at this.
Open command prompt and execute the below commands:
set oracle_sid=DATABASE NAME
sqlplus /nolog
conn sys/sys as sysdba
shutdown abort
startup
Check out the java.net.URI class.
We have one solution with some different way for implementation. We use the above solution for it.
datatables?v=1
We can handle the version of the file. It means that every time that we change our file, change the version of it too. But it's not a suitable way.
Another way used a GUID. It wasn't suitable either, because each time it fetches the file and doesn't use from the browser cache.
datatables?v=Guid.NewGuid()
The last way that is the best way is:
When a file change occurs, change the version too. Check the follow code:
<script src="~/scripts/[email protected](Server.MapPath("/scripts/main.js")).ToString("yyyyMMddHHmmss")"></script>
By this way, when you change the file, LastWriteTime change too, so the version of the file will change and in the next when you open the browser, it detects a new file and fetch it.
try this:
//this method to check bluetooth is enable or not: true if enable, false is not enable
public static boolean isBluetoothEnabled()
{
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (!mBluetoothAdapter.isEnabled()) {
// Bluetooth is not enable :)
return false;
}
else{
return true;
}
}
//method to enable bluetooth
public static void enableBluetooth(){
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (!mBluetoothAdapter.isEnabled()) {
mBluetoothAdapter.enable();
}
}
//method to disable bluetooth
public static void disableBluetooth(){
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter.isEnabled()) {
mBluetoothAdapter.disable();
}
}
Add these permissions in manifest
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
If you were programming for a 1980s-style printer, it would eject the paper and start a new page. You are virtually certain to never need it.
This is the best way (IMHO).
List<String> myArrayList = new ArrayList<String>();
//.....
String[] myArray = myArrayList.toArray(new String[myArrayList.size()]);
This code works also:
String[] myArray = myArrayList.toArray(new String[0]);
But it less effective: the string array is created twice: first time zero-length array is created, then the real-size array is created, filled and returned. So, if since you know the needed size (from list.size()
) you should create array that is big enough to put all elements. In this case it is not re-allocated.
If any project that you were using and now closed in workspace might lead to this issue, try deleting context from server folder inside eclipse or open the projects.
(new Date().toString()).replace(/ \w+-\d+ \(.*\)$/,"")
This will have output: Tue Jul 10 2018 19:07:11
(new Date("2005-07-08T11:22:33+0000").toString()).replace(/ \w+-\d+ \(.*\)$/,"")
This will have output: Fri Jul 08 2005 04:22:33
Note: The time returned will depend on your local timezone
Go to File -> Settings -> Editor -> Auto Import -> Java and make the below things:
Select Insert imports on paste value to All
Do tick mark on Add unambigious imports on the fly option and "Optimize imports on the fly*
IBM provide a number of tools which can be used on the sun jvm as well. Take a look at some of the projects on alphaworks, they provide a heap and thread dump analyzers
Karl
I had a lot of trouble with this too. Couldn't get it working using the case examples above, but this does the job for me:
Replace(rtrim(ltrim(ISNULL(Flat_no, '') +
' ' + ISNULL(House_no, '') +
' ' + ISNULL(Street, '') +
' ' + ISNULL(Town, '') +
' ' + ISNULL(City, ''))),' ',' ')
Replace corrects the double spaces caused by concatenating single spaces with nothing between them. r/ltrim gets rid of any spaces at the ends.
You can do this:
<img src="your image" style="transform:rotate(90deg);">
it is much easier.
Try the maven-exec-plugin. From there:
mvn exec:java -Dexec.mainClass="com.example.Main"
This will run your class in the JVM. You can use -Dexec.args="arg0 arg1"
to pass arguments.
If you're on Windows, apply quotes for
exec.mainClass
andexec.args
:mvn exec:java -D"exec.mainClass"="com.example.Main"
If you're doing this regularly, you can add the parameters into the pom.xml as well:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass>com.example.Main</mainClass>
<arguments>
<argument>foo</argument>
<argument>bar</argument>
</arguments>
</configuration>
</plugin>
You can generate statement like this: DROP TABLE t1, t2, t3, ...
and then use prepared statements to execute it:
SET FOREIGN_KEY_CHECKS = 0;
SET @tables = NULL;
SELECT GROUP_CONCAT('`', table_schema, '`.`', table_name, '`') INTO @tables
FROM information_schema.tables
WHERE table_schema = 'database_name'; -- specify DB name here.
SET @tables = CONCAT('DROP TABLE ', @tables);
PREPARE stmt FROM @tables;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
SET FOREIGN_KEY_CHECKS = 1;
/*
public class UserDAO {
public boolean insertUser(UserBean u) {
boolean flag = false;
MySqlConnection msq = new MySqlConnection();
try {
String sql = "insert into regis values(?,?,?,?,?)";
Connection connection = msq.getConnection();
PreparedStatement statement = null;
statement = (PreparedStatement) connection.prepareStatement(sql);
statement.setString(1, u.getname());
statement.setString(2, u.getlname());
statement.setString(3, u.getemail());
statement.setString(4, u.getusername());
statement.setString(5, u.getpasswords());
statement.executeUpdate();
flag = true;
} catch (Exception e) {
} finally {
return flag;
}
}
public String userValidate(UserBean u) {
String login = "";
MySqlConnection msq = new MySqlConnection();
try {
String email = u.getemail();
String Pass = u.getpasswords();
String sql = "SELECT name FROM regis WHERE email=? and passwords=?";
com.mysql.jdbc.Connection connection = msq.getConnection();
com.mysql.jdbc.PreparedStatement statement = null;
ResultSet rs = null;
statement = (com.mysql.jdbc.PreparedStatement) connection.prepareStatement(sql);
statement.setString(1, email);
statement.setString(2, Pass);
rs = statement.executeQuery();
if (rs.next()) {
login = rs.getString("name");
} else {
login = "false";
}
} catch (Exception e) {
} finally {
return login;
}
}
public boolean getmessage(UserBean u) {
boolean flag = false;
MySqlConnection msq = new MySqlConnection();
try {
String sql = "insert into feedback values(?,?)";
Connection connection = msq.getConnection();
PreparedStatement statement = null;
statement = (PreparedStatement) connection.prepareStatement(sql);
statement.setString(1, u.getemail());
statement.setString(2, u.getfeedback());
statement.executeUpdate();
flag = true;
} catch (Exception e) {
} finally {
return flag;
}
}
public boolean insertOrder(cartbean u) {
boolean flag = false;
MySqlConnection msq = new MySqlConnection();
try {
String sql = "insert into cart (product_id, email, Tprice, quantity) values (?,?,2000,?)";
Connection connection = msq.getConnection();
PreparedStatement statement = null;
statement = (PreparedStatement) connection.prepareStatement(sql);
statement.setString(1, u.getpid());
statement.setString(2, u.getemail());
statement.setString(3, u.getquantity());
statement.executeUpdate();
flag = true;
} catch (Exception e) {
System.out.print("hi");
} finally {
return flag;
}
}
}
A method has already been devised, however this way you don't need a temp file.
for /f "delims=" %%i in ('command') do set output=%%i
However, I'm sure this has its own exceptions and limitations.
Add the following css to disable the default scroll:
body {
overflow: hidden;
}
And change the #content
css to this to make the scroll only on content body:
#content {
max-height: calc(100% - 120px);
overflow-y: scroll;
padding: 0px 10%;
margin-top: 60px;
}
Edit:
Actually, I'm not sure what was the issue you were facing, since it seems that your css is working. I have only added the HTML and the header css statement:
html {_x000D_
height: 100%;_x000D_
}_x000D_
html body {_x000D_
height: 100%;_x000D_
overflow: hidden;_x000D_
}_x000D_
html body .container-fluid.body-content {_x000D_
position: absolute;_x000D_
top: 50px;_x000D_
bottom: 30px;_x000D_
right: 0;_x000D_
left: 0;_x000D_
overflow-y: auto;_x000D_
}_x000D_
header {_x000D_
position: absolute;_x000D_
left: 0;_x000D_
right: 0;_x000D_
top: 0;_x000D_
background-color: #4C4;_x000D_
height: 50px;_x000D_
}_x000D_
footer {_x000D_
position: absolute;_x000D_
left: 0;_x000D_
right: 0;_x000D_
bottom: 0;_x000D_
background-color: #4C4;_x000D_
height: 30px;_x000D_
}
_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<header></header>_x000D_
<div class="container-fluid body-content">_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>Lorem Ipsum<br/>_x000D_
</div>_x000D_
<footer></footer>
_x000D_
I know one solution I found (OSX with Apache 1 and just switched to PHP5) when I had a similar problem was that unsetting 1 specific key (ie unset($_SESSION['key']);) was causing it not to save. As soon as I didn't unset that key any more it saved. I have never seen this again, except on that server on another site, but then it was a different variable. Neither were anything special.
Thanks for this one Darryl. This helped me out. I was deleting a session variable, and for some reason it was keeping the session from committing. now i'm just setting it to null instead (which is fine for my app), and it works.
Sounds like you're doing this:
0..10.to_a
The warning is from Fixnum#to_a, not from Range#to_a. Try this instead:
(0..10).to_a
I had to modify this slightly to be used on a Windows System. Here's the one-liner version for a windows box.
openssl.exe s_client -connect yoursitename.com:443 > CertInfo.txt && openssl x509 -text -in CertInfo.txt | find "Signature Algorithm" && del CertInfo.txt /F
Tested on Server 2012 R2 using http://iweb.dl.sourceforge.net/project/gnuwin32/openssl/0.9.8h-1/openssl-0.9.8h-1-bin.zip
Try this MSDN blog
Also, try the following example:
Xaml:
<DataGrid AutoGenerateColumns="False" Name="DataGridTest" CanUserAddRows="True" ItemsSource="{Binding TestBinding}" Margin="0,50,0,0" >
<DataGrid.Columns>
<DataGridTextColumn Header="Line" IsReadOnly="True" Binding="{Binding Path=Test1}" Width="50"></DataGridTextColumn>
<DataGridTextColumn Header="Account" IsReadOnly="True" Binding="{Binding Path=Test2}" Width="130"></DataGridTextColumn>
</DataGrid.Columns>
</DataGrid>
<Button Content="Add new row" HorizontalAlignment="Left" Margin="0,10,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click_1"/>
CS:
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
var data = new Test { Test1 = "Test1", Test2 = "Test2" };
DataGridTest.Items.Add(data);
}
}
public class Test
{
public string Test1 { get; set; }
public string Test2 { get; set; }
}
You have to create your own ControlTemplate for the Button. just have a look at the sample
created a style called RoundCorner and inside that i changed rather created my own new Control Template with Border (CornerRadius=8) for round corner and some background and other trigger effect. If you have or know Expression Blend it can be done very easily.
<Style x:Key="RoundCorner" TargetType="{x:Type Button}">
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Grid x:Name="grid">
<Border x:Name="border" CornerRadius="8" BorderBrush="Black" BorderThickness="2">
<Border.Background>
<RadialGradientBrush GradientOrigin="0.496,1.052">
<RadialGradientBrush.RelativeTransform>
<TransformGroup>
<ScaleTransform CenterX="0.5" CenterY="0.5"
ScaleX="1.5" ScaleY="1.5"/>
<TranslateTransform X="0.02" Y="0.3"/>
</TransformGroup>
</RadialGradientBrush.RelativeTransform>
<GradientStop Offset="1" Color="#00000000"/>
<GradientStop Offset="0.3" Color="#FFFFFFFF"/>
</RadialGradientBrush>
</Border.Background>
<ContentPresenter HorizontalAlignment="Center"
VerticalAlignment="Center"
TextElement.FontWeight="Bold">
</ContentPresenter>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsPressed" Value="True">
<Setter Property="Background" TargetName="border">
<Setter.Value>
<RadialGradientBrush GradientOrigin="0.496,1.052">
<RadialGradientBrush.RelativeTransform>
<TransformGroup>
<ScaleTransform CenterX="0.5" CenterY="0.5" ScaleX="1.5" ScaleY="1.5"/>
<TranslateTransform X="0.02" Y="0.3"/>
</TransformGroup>
</RadialGradientBrush.RelativeTransform>
<GradientStop Color="#00000000" Offset="1"/>
<GradientStop Color="#FF303030" Offset="0.3"/>
</RadialGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="BorderBrush" TargetName="border" Value="#FF33962B"/>
</Trigger>
<Trigger Property="IsEnabled" Value="False">
<Setter Property="Opacity" TargetName="grid" Value="0.25"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Using
<Button Style="{DynamicResource RoundCorner}"
Height="25"
VerticalAlignment="Top"
Content="Show"
Width="100"
Margin="5" />
I came here looking for an answer to this same question and none of the answers above actually answer the question at all!
So after some investigation I found out: there is a package (for python 3.x at least):
pip3 install pytk
The problem is, it is only the python part of the equation and doesn't install the tkinter libraries in your OS, so the answer is that you can't install it completely via pip https://tkdocs.com/tutorial/install.html
Personally I find this very annoying as i'm packaging a python application to be installed via pip that uses tkinter and I was looking for a way to have pip ensure that tkinter is installed and the answer is I can't I have to instruct users to install it if it's not installed already, a very poor experience for end users who should not need to know or care what tkinter is to use my application.
>>>def random_char(y):
return ''.join(random.choice(string.ascii_letters) for x in range(y))
>>>print (random_char(5))
>>>fxkea
to generate y number of random characters
This should be a comment, but comments don't allow multi-line code.
Here's what's happening:
in Event.cpp
#include "Event.h"
preprocessor starts processing Event.h
#ifndef EVENT_H_
it isn't defined yet, so keep going
#define EVENT_H_
#include "common.h"
common.h
gets processed ok
#include "Item.h"
Item.h
gets processed ok
#include "Flight.h"
Flight.h
gets processed ok
#include "Landing.h"
preprocessor starts processing Landing.h
#ifndef LANDING_H_
not defined yet, keep going
#define LANDING_H_
#include "Event.h"
preprocessor starts processing Event.h
#ifndef EVENT_H_
This IS defined already, the whole rest of the file gets skipped. Continuing with Landing.h
class Landing: public Event {
The preprocessor doesn't care about this, but the compiler goes "WTH is Event
? I haven't heard about Event
yet."
According to the official flutter documentation you just need to change the ApplicationId
in app/build.gradle
directory. Then you have to just build your apk and the package name of the manifest file will be changed according to the ApplicationId
you changed in build.gradle
. Because of flutter while building an apk and google play both consider ApplicationId
from build.gradle. This solution worked for me.
source: Official Documentation
For a very specific reason Type Nullable<int>
put your cursor on Nullable and hit F12 - The Metadata provides the reason (Note the struct constraint):
public struct Nullable<T> where T : struct
{
...
}
This works as of: v0.14.0 of https://github.com/SheetJS/js-xlsx
/* generate array buffer */
var wbout = XLSX.write(wb, {type:"array", bookType:'xlsx'});
/* create data URL */
var url = URL.createObjectURL(new Blob([wbout], {type: 'application/octet-stream'}));
/* trigger download with chrome API */
chrome.downloads.download({ url: url, filename: "testsheet.xlsx", saveAs: true });
One way to do that is to use a counter:
ArrayList<Integer> list = new ArrayList<Integer>();
...
int size = list.size();
for (Integer i : list) {
...
if (--size == 0) {
// Last item.
...
}
}
Edit
Anyway, as Tom Hawtin said, it is sometimes better to use the "old" syntax when you need to get the current index information, by using a for
loop or the iterator
, as everything you win when using the Java5 syntax will be lost in the loop itself...
for (int i = 0; i < list.size(); i++) {
...
if (i == (list.size() - 1)) {
// Last item...
}
}
or
for (Iterator it = list.iterator(); it.hasNext(); ) {
...
if (!it.hasNext()) {
// Last item...
}
}
You can USE PyPDF2 package
#install pyDF2
pip install PyPDF2
# importing all the required modules
import PyPDF2
# creating an object
file = open('example.pdf', 'rb')
# creating a pdf reader object
fileReader = PyPDF2.PdfFileReader(file)
# print the number of pages in pdf file
print(fileReader.numPages)
Follow this Documentation http://pythonhosted.org/PyPDF2/
There is no direct equivalent to C-style macros in C#, but inline
d static methods - with or without #if
/#elseif
/#else
pragmas - is the closest you can get:
/// <summary>
/// Prints a message when in debug mode
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe void Log(object message) {
#if DEBUG
Console.WriteLine(message);
#endif
}
/// <summary>
/// Prints a formatted message when in debug mode
/// </summary>
/// <param name="format">A composite format string</param>
/// <param name="args">An array of objects to write using format</param>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe void Log(string format, params object[] args) {
#if DEBUG
Console.WriteLine(format, args);
#endif
}
/// <summary>
/// Computes the square of a number
/// </summary>
/// <param name="x">The value</param>
/// <returns>x * x</returns>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static double Square(double x) {
return x * x;
}
/// <summary>
/// Wipes a region of memory
/// </summary>
/// <param name="buffer">The buffer</param>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe void ClearBuffer(ref byte[] buffer) {
ClearBuffer(ref buffer, 0, buffer.Length);
}
/// <summary>
/// Wipes a region of memory
/// </summary>
/// <param name="buffer">The buffer</param>
/// <param name="offset">Start index</param>
/// <param name="length">Number of bytes to clear</param>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe void ClearBuffer(ref byte[] buffer, int offset, int length) {
fixed(byte* ptrBuffer = &buffer[offset]) {
for(int i = 0; i < length; ++i) {
*(ptrBuffer + i) = 0;
}
}
}
This works perfectly as a macro, but comes with a little drawback: Methods marked as inline
d will be copied to the reflection part of your assembly like any other "normal" method.
Description:
there are 3 steps to run PHP code inside post or page.
In functions.php
file (in your theme) add new function
In functions.php
file (in your theme) register new shortcode which call your function:
add_shortcode( 'SHORCODE_NAME', 'FUNCTION_NAME' );
Example #1: just display text.
In functions:
function simple_function_1() {
return "Hello World!";
}
add_shortcode( 'own_shortcode1', 'simple_function_1' );
In post/page:
[own_shortcode1]
Effect:
Hello World!
Example #2: use for loop.
In functions:
function simple_function_2() {
$output = "";
for ($number = 1; $number < 10; $number++) {
// Append numbers to the string
$output .= "$number<br>";
}
return "$output";
}
add_shortcode( 'own_shortcode2', 'simple_function_2' );
In post/page:
[own_shortcode2]
Effect:
1
2
3
4
5
6
7
8
9
Example #3: use shortcode with arguments
In functions:
function simple_function_3($name) {
return "Hello $name";
}
add_shortcode( 'own_shortcode3', 'simple_function_3' );
In post/page:
[own_shortcode3 name="John"]
Effect:
Hello John
Example #3 - without passing arguments
In post/page:
[own_shortcode3]
Effect:
Hello
The simplest way to do it is to do a depth first traversal (DFT) of the graph.
If the graph has n
vertices, this is a O(n)
time complexity algorithm. Since you will possibly have to do a DFT starting from each vertex, the total complexity becomes O(n^2)
.
You have to maintain a stack containing all vertices in the current depth first traversal, with its first element being the root node. If you come across an element which is already in the stack during the DFT, then you have a cycle.
1) Figure out where your application needs to be connecting to.
2) Set up a worker process to check InetAddress.isReachable to monitor the connection to that address.
This is in my work multiple conditionally judge:
<li ng-repeat='eOption in exam.examOptions' ng-class="exam.examTitle.ANSWER_COM==exam.examTitle.RIGHT_ANSWER?(eOption.eoSequence==exam.examTitle.ANSWER_COM?'right':''):eOption.eoSequence==exam.examTitle.ANSWER_COM?'wrong':eOption.eoSequence==exam.examTitle.RIGHT_ANSWER?'right':''">
<strong>{{eOption.eoSequence}}</strong> |
<span ng-bind-html="eOption.eoName | to_trusted">2020 ?</span>
</li>
To create a new screen with the name foo
, use
screen -S foo
Then to reattach it, run
screen -r foo # or use -x, as in
screen -x foo # for "Multi display mode" (see the man page)
export
is a built-in command of the bash
shell and other Bourne shell variants. It is used to mark a shell variable for export to child processes.
self.navigationController?.navigationBar.tintColor = UIColor.redColor()
This snippet does the magic. Instead of the redColor, change it to as your wish.
I've seen a web filtering application which does porn image filtering, sorry I can't remember the name. It was pretty prone to false positives however most of the time it was working.
I think main trick is detecting "too much skin on the picture :)
I'll try to keep it simple.
Supervised Learning: In this technique of learning, we are given a data set and the system already knows the correct output of the data set. So here, our system learns by predicting a value of its own. Then, it does an accuracy check by using a cost function to check how close its prediction was to the actual output.
Unsupervised Learning: In this approach, we have little or no knowledge of what our result would be. So instead, we derive structure from the data where we don't know effect of variable. We make structure by clustering the data based on relationship among the variable in data. Here, we don't have a feedback based on our prediction.
How about a very simple method
+call your while loop in a function
- set your value inside (nonsense, but shows the example)
- return your value inside
+capture your value outside
+set outside
+display outside
#!/bin/bash
# set -e
# set -u
# No idea why you need this, not using here
foo=0
bar="hello"
if [[ "$bar" == "hello" ]]
then
foo=1
echo "Setting \$foo to $foo"
fi
echo "Variable \$foo after if statement: $foo"
lines="first line\nsecond line\nthird line"
function my_while_loop
{
echo -e $lines | while read line
do
if [[ "$line" == "second line" ]]
then
foo=2; return 2;
echo "Variable \$foo updated to $foo inside if inside while loop"
fi
echo -e $lines | while read line
do
if [[ "$line" == "second line" ]]
then
foo=2;
echo "Variable \$foo updated to $foo inside if inside while loop"
return 2;
fi
# Code below won't be executed since we returned from function in 'if' statement
# We aready reported the $foo var beint set to 2 anyway
echo "Value of \$foo in while loop body: $foo"
done
}
my_while_loop; foo="$?"
echo "Variable \$foo after while loop: $foo"
Output:
Setting $foo 1
Variable $foo after if statement: 1
Value of $foo in while loop body: 1
Variable $foo after while loop: 2
bash --version
GNU bash, version 3.2.51(1)-release (x86_64-apple-darwin13)
Copyright (C) 2007 Free Software Foundation, Inc.
Not sure why they removed the option to just right click on the database and restore like you could in SQL Server Management Studio 2008 and earlier, but as mentioned above you can restore from a .BAK
file with:
RESTORE DATABASE YourDB FROM DISK = 'D:BackUpYourBaackUpFile.bak' WITH REPLACE
But you will want WITH REPLACE
instead of WITH RESTORE
if your moving it from one server to another.
create table question_bank
(
question_id uniqueidentifier primary key,
question_exam_id uniqueidentifier not null constraint fk_exam_id foreign key references exams(exam_id),
question_text varchar(1024) not null,
question_point_value decimal
);
--That will work too. Pehaps a bit more intuitive construct?
I spent quite a while wrestling with this problem and then I realized I was making a simple mistake in the fact that I had forgotten which particular database I was targeting my connection to. I was using the standard SQL Server connection window to enter the credentials:
I had to check the Connection Properties tab to verify that I was choosing the correct database to connect to. I had accidentally left the Connect to database option here set to a selection from a previous session. This is why I was unable to connect to the database I thought I was trying to connect to.
Note that you need to click the Options >>
button in order for the Connection Properties and other tabs to show up.
There are two situations possible when we talk about passing data between activities.
Let's say there are two activities A and B and there is a String X. and you are in Activity A.
Now let's see the two cases
CASE 1:
String X is in A and you want to get it in Activity B.
It is very straightforward.
In Activity A.
1) Create Intent
2) Put Extra value
3) startActivity
Intent i = new Intent(A.this, B.class);
i.putExtra("Your_KEY",X);
startActivity(i)
In Activity B
Inside onCreate()
method retrieve string X using the key which you used while storing X (Your_KEY).
Intent i = getIntent();
String s = i.getStringExtra("Your_KEY");
Case 2:
This case is little tricky if u are new to Android development Because you are in Activity A, you move to Activity B, collect the string, move back to Activity A and retrieve the collected String or data. Let's see how to deal with this situation.
In Activity A
1) Create Intent
2) start an activity with a request code.
Intent i = new Intent(A.this, B.class);
startActivityForResult(i,your_req_code);
In Activity B
1) Put string X in intent
2) Set result
3) Finish activity
Intent returnIntent = new Intent();
returnIntent .putString("KEY",X);
setResult(resCode,returnIntent); // for the first argument, you could set Activity.RESULT_OK or your custom rescode too
finish();
Again in Activity A
1) Override onActivityResult method
onActivityResult(int req_code, int res_code, Intent data)
{
if(req_code==your_req_code)
{
String X = data.getStringExtra("KEY")
}
}
You might wonder what is the reqCode, resCode in the onActivityResult(int reqCode, resCode, Intent data)
reqCode is useful when you have to identify from which activity you are getting the result from.
Let's say you have two buttons, one button starts Camera (you click a photo and get the bitmap of that image in your Activity as a result), another button starts GoogleMap( you get back the current coordinates of your location as a result). So to distinguish between the results of both activities you start CameraActivty and MapActivity with different request codes.
resCode: is useful when you have to distinguish between how results are coming back to requesting activity.
For eg: You start Camera Activity. When the camera activity starts, you could either take a photo or just move back to requesting activity without taking a photo with the back button press. So in these two situations, your camera activity sends result with different resCode ACTIVITY.RESULT_OK and ACTIVITY.RESULT_CANCEL respectively.
Relevant Links
It can be useful if mixed new property add in runtime:
data = { ...data, newPropery: value}
However, spread operator use shallow copy but here we assign data to itself so should lose nothing
In case of MySQL
or SQLite
the correct keyword is IFNULL
(not ISNULL
).
SELECT iar.Description,
IFNULL(iai.Quantity,0) as Quantity,
IFNULL(iai.Quantity * rpl.RegularPrice,0) as 'Retail',
iar.Compliance
FROM InventoryAdjustmentReason iar
LEFT OUTER JOIN InventoryAdjustmentItem iai on (iar.Id = iai.InventoryAdjustmentReasonId)
LEFT OUTER JOIN Item i on (i.Id = iai.ItemId)
LEFT OUTER JOIN ReportPriceLookup rpl on (rpl.SkuNumber = i.SkuNo)
WHERE iar.StoreUse = 'yes'
I was not content with any of the answers on this page, so I fiddled with this myself for a bit. I came up with the following
angular.module('showcase', []).controller('Ctrl', function() {_x000D_
var vm = this;_x000D_
vm.focusParent = function(event) {_x000D_
angular.element(event.target).parent().addClass('focus');_x000D_
};_x000D_
_x000D_
vm.blurParent = function(event) {_x000D_
angular.element(event.target).parent().removeClass('focus');_x000D_
};_x000D_
});
_x000D_
.input-merge .col-xs-2,_x000D_
.input-merge .col-xs-4,_x000D_
.input-merge .col-xs-6 {_x000D_
padding-left: 0;_x000D_
padding-right: 0;_x000D_
}_x000D_
.input-merge div:first-child .form-control {_x000D_
border-top-right-radius: 0;_x000D_
border-bottom-right-radius: 0;_x000D_
}_x000D_
.input-merge div:last-child .form-control {_x000D_
border-top-left-radius: 0;_x000D_
border-bottom-left-radius: 0;_x000D_
}_x000D_
.input-merge div:not(:first-child) {_x000D_
margin-left: -1px;_x000D_
}_x000D_
.input-merge div:not(:first-child):not(:last-child) .form-control {_x000D_
border-radius: 0;_x000D_
}_x000D_
.focus {_x000D_
z-index: 2;_x000D_
}
_x000D_
<html ng-app="showcase">_x000D_
_x000D_
<head>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />_x000D_
</head>_x000D_
_x000D_
<body class="container">_x000D_
<label class="control-label">Person</label>_x000D_
<div class="input-merge" ng-controller="Ctrl as showCase">_x000D_
<div class="col-xs-4">_x000D_
<input class="form-control input-sm" name="initials" type="text" id="initials"_x000D_
ng-focus="showCase.focusParent($event)" ng-blur="showCase.blurParent($event)"_x000D_
ng-model="person.initials" placeholder="Initials" />_x000D_
</div>_x000D_
_x000D_
<div class="col-xs-2">_x000D_
<input class="form-control input-sm" name="prefixes" type="text" id="prefixes"_x000D_
ng-focus="showCase.focusParent($event)" ng-blur="showCase.blurParent($event)"_x000D_
ng-model="persoon.prefixes" placeholder="Prefixes" />_x000D_
</div>_x000D_
_x000D_
<div class="col-xs-6">_x000D_
<input class="form-control input-sm" name="surname" type="text" id="surname"_x000D_
ng-focus="showCase.focusParent($event)" ng-blur="showCase.blurParent($event)"_x000D_
ng-model="persoon.surname" placeholder="Surname" />_x000D_
</div>_x000D_
</div>_x000D_
</body>_x000D_
_x000D_
</html>
_x000D_
With this it is possible to set the width of the individual inputs to your liking. Also a minor issue with the above snippets was that the input looks incomplete when focussed or when it is not valid. I fixed this with some angular code, but you can just as easily do this with jQuery or native javascript or whatever.
The code adds the class .focus to the containing div's, so it can get a higher z-index then the others when the input is focussed.
You could use the xpath :
//div[@class="measure-tab" and .//span[contains(., "someText")]]
Input :
<root>
<div class="measure-tab">
<td> someText</td>
</div>
<div class="measure-tab">
<div>
<div2>
<span>someText2</span>
</div2>
</div>
</div>
</root>
Output :
Element='<div class="measure-tab">
<div>
<div2>
<span>someText2</span>
</div2>
</div>
</div>'
Your regex matches (and removes) only subsequent square brackets. Use this instead:
str = str.replaceAll("\\[|\\]", "");
If you only want to replace bracket pairs with content in between, you could use this:
str = str.replaceAll("\\[(.*?)\\]", "$1");
You can install chocolatey. It's like apt-get in Linux, you can install using the command line. Run Command Prompt as Administrator and type choco install git
and you'll be able to install git devoted to the command line.
I use a crazy way to do this is using this command
$firstDay=date('Y-m-d',strtotime("first day of this month"));
$lastDay=date('Y-m-d',strtotime("last day of this month"));
Thats all
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
var video = document.getElementById('video');
video.addEventListener('play', function () {
var $this = this; //cache
(function loop() {
if (!$this.paused && !$this.ended) {
ctx.drawImage($this, 0, 0);
setTimeout(loop, 1000 / 30); // drawing at 30fps
}
})();
}, 0);
I guess the above code is self Explanatory, If not drop a comment below, I will try to explain the above few lines of code
Edit :
here's an online example, just for you :)
Demo
var canvas = document.getElementById('canvas');_x000D_
var ctx = canvas.getContext('2d');_x000D_
var video = document.getElementById('video');_x000D_
_x000D_
// set canvas size = video size when known_x000D_
video.addEventListener('loadedmetadata', function() {_x000D_
canvas.width = video.videoWidth;_x000D_
canvas.height = video.videoHeight;_x000D_
});_x000D_
_x000D_
video.addEventListener('play', function() {_x000D_
var $this = this; //cache_x000D_
(function loop() {_x000D_
if (!$this.paused && !$this.ended) {_x000D_
ctx.drawImage($this, 0, 0);_x000D_
setTimeout(loop, 1000 / 30); // drawing at 30fps_x000D_
}_x000D_
})();_x000D_
}, 0);
_x000D_
<div id="theater">_x000D_
<video id="video" src="http://upload.wikimedia.org/wikipedia/commons/7/79/Big_Buck_Bunny_small.ogv" controls="false"></video>_x000D_
<canvas id="canvas"></canvas>_x000D_
<label>_x000D_
<br />Try to play me :)</label>_x000D_
<br />_x000D_
</div>
_x000D_
Looks like recentish versions of Git (I'm on git v2.20) allow one to simply say
git fetch --prune --prune-tags
Much cleaner!
https://git-scm.com/docs/git-fetch#_pruning
You can also configure git to always prune tags when fetching:
git config fetch.pruneTags true
If you only want to prune tags when fetching from a specific remote, you can use the remote.<remote>.pruneTags
option. For example, to always prune tags when fetching from origin but not other remotes,
git config remote.origin.pruneTags true
git clone your-repo tmp && mv tmp/.git . && rm -rf tmp && git reset --hard
USE StringUtils.join
function:
E.g.
String myCsvString = StringUtils.join(myList, ",")
Assuming your page is available under "http://example.com"
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Firefox()
driver.get("http://example.com")
Select element by id:
inputElement = driver.find_element_by_id("a1")
inputElement.send_keys('1')
Now you can simulate hitting ENTER:
inputElement.send_keys(Keys.ENTER)
or if it is a form you can submit:
inputElement.submit()
This works for me
find _CACHE_* | while read line; do
cat "$line" | grep "something"
done
I'll try and answer several different things, however my contribution may not cover all of your questions. Maybe several of us can take different chunks out of this. However, this info should be helpful for you. Here we go..
Opening A Seperate File:
ChDir "[Path here]" 'get into the right folder here
Workbooks.Open Filename:= "[Path here]" 'include the filename in this path
'copy data into current workbook or whatever you want here
ActiveWindow.Close 'closes out the file
Opening A File With Specified Date If It Exists:
I'm not sure how to search your directory to see if a file exists, but in my case I wouldn't bother to search for it, I'd just try to open it and put in some error checking so that if it doesn't exist then display this message or do xyz.
Some common error checking statements:
On Error Resume Next 'if error occurs continues on to the next line (ignores it)
ChDir "[Path here]"
Workbooks.Open Filename:= "[Path here]" 'try to open file here
Or (better option):
if one doesn't exist then bring up either a message box or dialogue box to say "the file does not exist, would you like to create a new one?
you would most likely want to use the GoTo ErrorHandler
shown below to achieve this
On Error GoTo ErrorHandler:
ChDir "[Path here]"
Workbooks.Open Filename:= "[Path here]" 'try to open file here
ErrorHandler:
'Display error message or any code you want to run on error here
Much more info on Error handling here: http://www.cpearson.com/excel/errorhandling.htm
Also if you want to learn more or need to know more generally in VBA I would recommend Siddharth Rout's site, he has lots of tutorials and example code here: http://www.siddharthrout.com/vb-dot-net-and-excel/
Hope this helps!
Example on how to ensure error code doesn't run EVERYtime:
if you debug through the code without the Exit Sub
BEFORE the error handler you'll soon realize the error handler will be run everytime regarldess of if there is an error or not. The link below the code example shows a previous answer to this question.
Sub Macro
On Error GoTo ErrorHandler:
ChDir "[Path here]"
Workbooks.Open Filename:= "[Path here]" 'try to open file here
Exit Sub 'Code will exit BEFORE ErrorHandler if everything goes smoothly
'Otherwise, on error, ErrorHandler will be run
ErrorHandler:
'Display error message or any code you want to run on error here
End Sub
Also, look at this other question in you need more reference to how this works: goto block not working VBA
Sounds like it might be a realative uri. I ran into this problem when doing cross-browser Silverlight; on my blog I mentioned a workaround: pass a "context" uri as the first parameter.
If the uri is realtive, the context uri is used to create a full uri. If the uri is absolute, then the context uri is ignored.
EDIT: You need a "scheme" in the uri, e.g., "ftp://" or "http://"
You could use a variable to make the calculation and use toFixed
when you set the #diskamountUnit
element value:
var amount = $("#disk").slider("value") * 1.60;
$("#diskamountUnit").val('$' + amount.toFixed(2));
You can also do that in one step, in the val
method call but IMO the first way is more readable:
$("#diskamountUnit").val('$' + ($("#disk").slider("value") * 1.60).toFixed(2));
All the solutions are correct, but I found it easier just write a function to implement this. like this:
template <class T1, class T2>
void ContainerInsert(T1 t1, T2 t2)
{
t1->insert(t1->end(), t2->begin(), t2->end());
}
That way you can avoid the temporary placement like this:
ContainerInsert(vec, GetSomeVector());
Put them into a list
and use merge
with Reduce
Reduce(function(x, y) merge(x, y, all=TRUE), list(df1, df2, df3))
# id v1 v2 v3
# 1 1 1 NA NA
# 2 10 4 NA NA
# 3 2 3 4 NA
# 4 43 5 NA NA
# 5 73 2 NA NA
# 6 23 NA 2 1
# 7 57 NA 3 NA
# 8 62 NA 5 2
# 9 7 NA 1 NA
# 10 96 NA 6 NA
You can also use this more concise version:
Reduce(function(...) merge(..., all=TRUE), list(df1, df2, df3))
Minimal reproduction example with disassembly analysis
main.c
void myfunc(char *const src, int len) {
int i;
for (i = 0; i < len; ++i) {
src[i] = 42;
}
}
int main(void) {
char arr[] = {'a', 'b', 'c', 'd'};
int len = sizeof(arr);
myfunc(arr, len + 1);
return 0;
}
Compile and run:
gcc -fstack-protector-all -g -O0 -std=c99 main.c
ulimit -c unlimited && rm -f core
./a.out
fails as desired:
*** stack smashing detected ***: terminated
Aborted (core dumped)
Tested on Ubuntu 20.04, GCC 10.2.0.
On Ubuntu 16.04, GCC 6.4.0, I could reproduce with -fstack-protector
instead of -fstack-protector-all
, but it stopped blowing up when I tested on GCC 10.2.0 as per Geng Jiawen's comment. man gcc
clarifies that as suggested by the option name, the -all
version adds checks more aggressively, and therefore presumably incurs a larger performance loss:
-fstack-protector
Emit extra code to check for buffer overflows, such as stack smashing attacks. This is done by adding a guard variable to functions with vulnerable objects. This includes functions that call "alloca", and functions with buffers larger than or equal to 8 bytes. The guards are initialized when a function is entered and then checked when the function exits. If a guard check fails, an error message is printed and the program exits. Only variables that are actually allocated on the stack are considered, optimized away variables or variables allocated in registers don't count.
-fstack-protector-all
Like -fstack-protector except that all functions are protected.
Disassembly
Now we look at the disassembly:
objdump -D a.out
which contains:
int main (void){
400579: 55 push %rbp
40057a: 48 89 e5 mov %rsp,%rbp
# Allocate 0x10 of stack space.
40057d: 48 83 ec 10 sub $0x10,%rsp
# Put the 8 byte canary from %fs:0x28 to -0x8(%rbp),
# which is right at the bottom of the stack.
400581: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
400588: 00 00
40058a: 48 89 45 f8 mov %rax,-0x8(%rbp)
40058e: 31 c0 xor %eax,%eax
char arr[] = {'a', 'b', 'c', 'd'};
400590: c6 45 f4 61 movb $0x61,-0xc(%rbp)
400594: c6 45 f5 62 movb $0x62,-0xb(%rbp)
400598: c6 45 f6 63 movb $0x63,-0xa(%rbp)
40059c: c6 45 f7 64 movb $0x64,-0x9(%rbp)
int len = sizeof(arr);
4005a0: c7 45 f0 04 00 00 00 movl $0x4,-0x10(%rbp)
myfunc(arr, len + 1);
4005a7: 8b 45 f0 mov -0x10(%rbp),%eax
4005aa: 8d 50 01 lea 0x1(%rax),%edx
4005ad: 48 8d 45 f4 lea -0xc(%rbp),%rax
4005b1: 89 d6 mov %edx,%esi
4005b3: 48 89 c7 mov %rax,%rdi
4005b6: e8 8b ff ff ff callq 400546 <myfunc>
return 0;
4005bb: b8 00 00 00 00 mov $0x0,%eax
}
# Check that the canary at -0x8(%rbp) hasn't changed after calling myfunc.
# If it has, jump to the failure point __stack_chk_fail.
4005c0: 48 8b 4d f8 mov -0x8(%rbp),%rcx
4005c4: 64 48 33 0c 25 28 00 xor %fs:0x28,%rcx
4005cb: 00 00
4005cd: 74 05 je 4005d4 <main+0x5b>
4005cf: e8 4c fe ff ff callq 400420 <__stack_chk_fail@plt>
# Otherwise, exit normally.
4005d4: c9 leaveq
4005d5: c3 retq
4005d6: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
4005dd: 00 00 00
Notice the handy comments automatically added by objdump
's artificial intelligence module.
If you run this program multiple times through GDB, you will see that:
myfunc
is exactly what modifies the address of the canaryThe canary randomized by setting it with %fs:0x28
, which contains a random value as explained at:
Debug attempts
From now on, we modify the code:
myfunc(arr, len + 1);
to be instead:
myfunc(arr, len);
myfunc(arr, len + 1); /* line 12 */
myfunc(arr, len);
to be more interesting.
We will then try to see if we can pinpoint the culprit + 1
call with a method more automated than just reading and understanding the entire source code.
gcc -fsanitize=address
to enable Google's Address Sanitizer (ASan)
If you recompile with this flag and run the program, it outputs:
#0 0x4008bf in myfunc /home/ciro/test/main.c:4
#1 0x40099b in main /home/ciro/test/main.c:12
#2 0x7fcd2e13d82f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
#3 0x400798 in _start (/home/ciro/test/a.out+0x40079
followed by some more colored output.
This clearly pinpoints the problematic line 12.
The source code for this is at: https://github.com/google/sanitizers but as we saw from the example it is already upstreamed into GCC.
ASan can also detect other memory problems such as memory leaks: How to find memory leak in a C++ code/project?
Valgrind SGCheck
As mentioned by others, Valgrind is not good at solving this kind of problem.
It does have an experimental tool called SGCheck:
SGCheck is a tool for finding overruns of stack and global arrays. It works by using a heuristic approach derived from an observation about the likely forms of stack and global array accesses.
So I was not very surprised when it did not find the error:
valgrind --tool=exp-sgcheck ./a.out
The error message should look like this apparently: Valgrind missing error
GDB
An important observation is that if you run the program through GDB, or examine the core
file after the fact:
gdb -nh -q a.out core
then, as we saw on the assembly, GDB should point you to the end of the function that did the canary check:
(gdb) bt
#0 0x00007f0f66e20428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#1 0x00007f0f66e2202a in __GI_abort () at abort.c:89
#2 0x00007f0f66e627ea in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f0f66f7a49f "*** %s ***: %s terminated\n") at ../sysdeps/posix/libc_fatal.c:175
#3 0x00007f0f66f0415c in __GI___fortify_fail (msg=<optimized out>, msg@entry=0x7f0f66f7a481 "stack smashing detected") at fortify_fail.c:37
#4 0x00007f0f66f04100 in __stack_chk_fail () at stack_chk_fail.c:28
#5 0x00000000004005f6 in main () at main.c:15
(gdb) f 5
#5 0x00000000004005f6 in main () at main.c:15
15 }
(gdb)
And therefore the problem is likely in one of the calls that this function made.
Next we try to pinpoint the exact failing call by first single stepping up just after the canary is set:
400581: 64 48 8b 04 25 28 00 mov %fs:0x28,%rax
400588: 00 00
40058a: 48 89 45 f8 mov %rax,-0x8(%rbp)
and watching the address:
(gdb) p $rbp - 0x8
$1 = (void *) 0x7fffffffcf18
(gdb) watch 0x7fffffffcf18
Hardware watchpoint 2: *0x7fffffffcf18
(gdb) c
Continuing.
Hardware watchpoint 2: *0x7fffffffcf18
Old value = 1800814336
New value = 1800814378
myfunc (src=0x7fffffffcf14 "*****?Vk\266", <incomplete sequence \355\216>, len=5) at main.c:3
3 for (i = 0; i < len; ++i) {
(gdb) p len
$2 = 5
(gdb) p i
$3 = 4
(gdb) bt
#0 myfunc (src=0x7fffffffcf14 "*****?Vk\266", <incomplete sequence \355\216>, len=5) at main.c:3
#1 0x00000000004005cc in main () at main.c:12
Now, this does leaves us at the right offending instruction: len = 5
and i = 4
, and in this particular case, did point us to the culprit line 12.
However, the backtrace is corrupted, and contains some trash. A correct backtrace would look like:
#0 myfunc (src=0x7fffffffcf14 "abcd", len=4) at main.c:3
#1 0x00000000004005b8 in main () at main.c:11
so maybe this could corrupt the stack and prevent you from seeing the trace.
Also, this method requires knowing what is the last call of the canary checking function otherwise you will have false positives, which will not always be feasible, unless you use reverse debugging.
QT no longer supports PyQt4, but you can install PyQt5 with pip:
pip install PyQt5
You can use the DateTime.Parse method to get a DateTime object and then check its Month property. Do something like this:
int month = DateTime.Parse("1." + monthName + " 2008").Month;
The trick is to build a valid date to create a DateTime object.
You can also do:
tree | grep filename
This pipes the output of the tree command to grep for a search. This will only tell you whether the file exists though.
Unfortunately, using varargs if the type of the keys and values are not the same is not very reasonable as you'd have to use Object...
and lose type safety completely. If you always want to create e.g. a Map<String, String>
, of course a toMap(String... args)
would be possible though, but not very pretty as it would be easy to mix up keys and values, and an odd number of arguments would be invalid.
You could create a sub-class of HashMap that has a chainable method like
public class ChainableMap<K, V> extends HashMap<K, V> {
public ChainableMap<K, V> set(K k, V v) {
put(k, v);
return this;
}
}
and use it like new ChainableMap<String, Object>().set("a", 1).set("b", "foo")
Another approach is to use the common builder pattern:
public class MapBuilder<K, V> {
private Map<K, V> mMap = new HashMap<>();
public MapBuilder<K, V> put(K k, V v) {
mMap.put(k, v);
return this;
}
public Map<K, V> build() {
return mMap;
}
}
and use it like new MapBuilder<String, Object>().put("a", 1).put("b", "foo").build();
However, the solution I've used now and then utilizes varargs and the Pair
class:
public class Maps {
public static <K, V> Map<K, V> of(Pair<K, V>... pairs) {
Map<K, V> = new HashMap<>();
for (Pair<K, V> pair : pairs) {
map.put(pair.first, pair.second);
}
return map;
}
}
Map<String, Object> map = Maps.of(Pair.create("a", 1), Pair.create("b", "foo");
The verbosity of Pair.create()
bothers me a bit, but this works quite fine. If you don't mind static imports you could of course create a helper:
public <K, V> Pair<K, V> p(K k, V v) {
return Pair.create(k, v);
}
Map<String, Object> map = Maps.of(p("a", 1), p("b", "foo");
(Instead of Pair
one could imagine using Map.Entry
, but since it's an interface it requires an implementing class and/or a helper factory method. It's also not immutable, and contains other logic not useful for this task.)
To avoid the fact that destroy_all
instantiates all the records and destroys them one at a time, you can use it directly from the model class.
So instead of :
u = User.find_by_name('JohnBoy')
u.usage_indexes.destroy_all
You can do :
u = User.find_by_name('JohnBoy')
UsageIndex.destroy_all "user_id = #{u.id}"
The result is one query to destroy all the associated records
This was right up my ally -- though, I'm still trying to figure out how some .dll
s got in:
http://www.gitignore.io/ http://www.diaryofaninja.com/blog/2011/06/01/how-to-easily-create-a-gitignore-file-inside-windows-explorer
Hope this helps!
In older versions of express, we had to use:
app.use(express.bodyparser());
because body-parser was a middleware between node and express. Now we have to use it like:
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());
This actually worked for me
Spinner spinner = new Spinner(this);
ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(
this, android.R.layout.simple_spinner_item, spinnerArray);
spinnerArrayAdapter.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
spinner = (Spinner) findViewById( R.id.spinner );
spinner.setAdapter(spinnerArrayAdapter);
Click Tools > Firebase to open the Assistant window.
Click to expand one of the listed features (for example, Analytics), then click the provided tutorial link (for example, Log an Analytics event).
Click the Connect to Firebase button to connect to Firebase and add the necessary code to your app.
Writing this answer as a reminder for me as well.
I combined several answers here and in the end mine worked with something like these. (I am using SpringBoot 1.5.7 and Lombok 1.16.16)
@Data
public Class someClass {
@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)
@JsonSerialize(using = LocalDateTimeSerializer.class)
@JsonDeserialize(using = LocalDateTimeDeserializer.class)
private LocalDateTime someDate;
}
names=[line.strip() for line in open('names.txt')]
You can add virtual columns as
SELECT '1' as temp
But if you tries to put where condition to additionally generated column, it wont work and will show an error message as the column doesn't exist.
We can solve this issue by returning sql result as a table.ie,
SELECT tb.* from (SELECT 1 as temp) as tb WHERE tb.temp = 1
On the Rails side, params
is a method that returns an ActionController::Parameters
object.
See https://stackoverflow.com/a/44070358/5462485
The main difference is that Collections.emptyList()
returns an immutable list, i.e., a list to which you cannot add elements. (Same applies to the List.of()
introduced in Java 9.)
In the rare cases where you do want to modify the returned list, Collections.emptyList()
and List.of()
are thus not a good choices.
I'd say that returning an immutable list is perfectly fine (and even the preferred way) as long as the contract (documentation) does not explicitly state differently.
In addition, emptyList()
might not create a new object with each call.
Implementations of this method need not create a separate List object for each call. Using this method is likely to have comparable cost to using the like-named field. (Unlike this method, the field does not provide type safety.)
The implementation of emptyList
looks as follows:
public static final <T> List<T> emptyList() {
return (List<T>) EMPTY_LIST;
}
So if your method (which returns an empty list) is called very often, this approach may even give you slightly better performance both CPU and memory wise.
Try to change the port number in application.yaml
(or application.properties
) to something else.
use parseInt
and compare like below:
javascript:alert(parseInt("2")>parseInt("10"))
This will work, and if you need where statement you can add it as parameter.
class GenericDAOWithJPA<T, ID extends Serializable> {
.......
public List<T> findAll() {
return entityManager.createQuery("Select t from " + persistentClass.getSimpleName() + " t").getResultList();
}
}
I did something like this:
from math import trunc
def truncate(number, decimals=0):
if decimals < 0:
raise ValueError('truncate received an invalid value of decimals ({})'.format(decimals))
elif decimals == 0:
return trunc(number)
else:
factor = float(10**decimals)
return trunc(number*factor)/factor
The easiest way is to paste the following command:
cat /opt/gitlab/version-manifest.txt | head -n 1
and there you get the version installed. :)
label
is an inline element so its width is equal to the width of the text it contains. The browser is actually displaying the label with text-align:center
but since the label is only as wide as the text you don't notice.
The best thing to do is to apply a specific width to the label
that is greater than the width of the content - this will give you the results you want.
After trying all the solutions and still not finding a solution, I deduced the problem to the USB cable(s).
Since it was working sometimes for me (ie at work) and not other times (ie at home), I decided to try out different cables and different Android phones I had. And sure enough, some of the cables did not work (adb can't see phone) with any of the phones, but they still charged the phone and Android recognized that it was plugged in.
The good cables obviously charged the phones and were immediately recognized by adb. It was a pretty clear difference.
I couldn't tell the cables apart physically from outside, but all were free USB cables I've gathered over the years.
If you are doing this just for a parameter coming into a Stored Procedure, you can use the following:
declare @badIndex int
set @badIndex = PatIndex('%[^0-9]%', @Param)
while @badIndex > 0
set @Param = Replace(@Param, Substring(@Param, @badIndex, 1), '')
set @badIndex = PatIndex('%[^0-9]%', @Param)
You cannot directly save a Python file as an exe and expect it to work -- the computer cannot automatically understand whatever code you happened to type in a text file. Instead, you need to use another program to transform your Python code into an exe.
I recommend using a program like Pyinstaller. It essentially takes the Python interpreter and bundles it with your script to turn it into a standalone exe that can be run on arbitrary computers that don't have Python installed (typically Windows computers, since Linux tends to come pre-installed with Python).
To install it, you can either download it from the linked website or use the command:
pip install pyinstaller
...from the command line. Then, for the most part, you simply navigate to the folder containing your source code via the command line and run:
pyinstaller myscript.py
You can find more information about how to use Pyinstaller and customize the build process via the documentation.
You don't necessarily have to use Pyinstaller, though. Here's a comparison of different programs that can be used to turn your Python code into an executable.
The characters will get send just like that to the underlying output device (in your case probably a terminal emulator).
It is up to the terminal's implementation then how those characters get actually displayed. For example, a bell (\a
) could trigger a beep sound on some terminals, a flash of the screen on others, or it will be completely ignored. It all depends on how the terminal is configured.
std::string -> wchar_t[]
with safe mbstowcs_s
function:
auto ws = std::make_unique<wchar_t[]>(s.size() + 1);
mbstowcs_s(nullptr, ws.get(), s.size() + 1, s.c_str(), s.size());
This is from my sample code
Money transfered online form one account to another account is stateful, because the receving account has information about the sender. Handing over cash from a person to another person, this transaction is statless, because after cash is recived the identity of the giver is not there with the cash.
One can invoke mysqldump locally against a remote server.
Example that worked for me:
mysqldump -h hostname-of-the-server -u mysql_user -p database_name > file.sql
I followed the mysqldump documentation on connection options.
Good try! I think you just have to make a few small changes:
[
and ]
) inside the character class (which are also indicated by [
and ]
)\
) itself-
is special: if it's between two characters, it means a range, but if it's at the beginning or the end, it means the literal -
character.You'll want something like this:
preg_replace('/[^a-zA-Z0-9_%\[().\]\\/-]/s', '', $String);
See http://docs.activestate.com/activeperl/5.10/lib/pods/perlrecharclass.html#special_characters_inside_a_bracketed_character_class if you want to read up further on this topic.
You can also make the python script run as a service using a shell script. First create a shell script to run the python script like this (scriptname arbitary name)
#!/bin/sh
script='/home/.. full path to script'
/usr/bin/python $script &
now make a file in /etc/init.d/scriptname
#! /bin/sh
PATH=/bin:/usr/bin:/sbin:/usr/sbin
DAEMON=/home/.. path to shell script scriptname created to run python script
PIDFILE=/var/run/scriptname.pid
test -x $DAEMON || exit 0
. /lib/lsb/init-functions
case "$1" in
start)
log_daemon_msg "Starting feedparser"
start_daemon -p $PIDFILE $DAEMON
log_end_msg $?
;;
stop)
log_daemon_msg "Stopping feedparser"
killproc -p $PIDFILE $DAEMON
PID=`ps x |grep feed | head -1 | awk '{print $1}'`
kill -9 $PID
log_end_msg $?
;;
force-reload|restart)
$0 stop
$0 start
;;
status)
status_of_proc -p $PIDFILE $DAEMON atd && exit 0 || exit $?
;;
*)
echo "Usage: /etc/init.d/atd {start|stop|restart|force-reload|status}"
exit 1
;;
esac
exit 0
Now you can start and stop your python script using the command /etc/init.d/scriptname start or stop.
If you want to handle different 404s in different ways, consider catching them in your controllers. This will allow you to do things like tracking the number of 404s generated by different user groups, have support interact with users to find out what went wrong / what part of the user experience might need tweaking, do A/B testing, etc.
I have here placed the base logic in ApplicationController, but it can also be placed in more specific controllers, to have special logic only for one controller.
The reason I am using an if with ENV['RESCUE_404'], is so I can test the raising of AR::RecordNotFound in isolation. In tests, I can set this ENV var to false, and my rescue_from would not fire. This way I can test the raising separate from the conditional 404 logic.
class ApplicationController < ActionController::Base
rescue_from ActiveRecord::RecordNotFound, with: :conditional_404_redirect if ENV['RESCUE_404']
private
def conditional_404_redirect
track_404(@current_user)
if @current_user.present?
redirect_to_user_home
else
redirect_to_front
end
end
end
Edit your phpmyadmin config.inc.php file and if you have Password, insert that in front of Password in following code:
$cfg['Servers'][$i]['verbose'] = 'localhost';
$cfg['Servers'][$i]['host'] = 'localhost';
$cfg['Servers'][$i]['port'] = '3306';
$cfg['Servers'][$i]['socket'] = '';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['extension'] = 'mysqli';
$cfg['Servers'][$i]['auth_type'] = 'config';
$cfg['Servers'][$i]['user'] = '**your-root-username**';
$cfg['Servers'][$i]['password'] = '**root-password**';
$cfg['Servers'][$i]['AllowNoPassword'] = true;
The most simplest tool comes with glibc and is called getconf
:
$ getconf _NPROCESSORS_ONLN
4
ASP.NET Core 3.1
This is my implementation of the feature, it works on server side as well as with jquery validation unobtrusive with a custom error message just like any other attribute:
The attribute:
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = false)]
public class MustBeIntegerAttribute : ValidationAttribute, IClientModelValidator
{
public void AddValidation(ClientModelValidationContext context)
{
MergeAttribute(context.Attributes, "data-val", "true");
var errorMsg = FormatErrorMessage(context.ModelMetadata.GetDisplayName());
MergeAttribute(context.Attributes, "data-val-mustbeinteger", errorMsg);
}
public override bool IsValid(object value)
{
return int.TryParse(value?.ToString() ?? "", out int newVal);
}
private bool MergeAttribute(
IDictionary<string, string> attributes,
string key,
string value)
{
if (attributes.ContainsKey(key))
{
return false;
}
attributes.Add(key, value);
return true;
}
}
Client side logic:
$.validator.addMethod("mustbeinteger",
function (value, element, parameters) {
return !isNaN(parseInt(value)) && isFinite(value);
});
$.validator.unobtrusive.adapters.add("mustbeinteger", [], function (options) {
options.rules.mustbeinteger = {};
options.messages["mustbeinteger"] = options.message;
});
And finally the Usage:
[MustBeInteger(ErrorMessage = "You must provide a valid number")]
public int SomeNumber { get; set; }
Congratulation ! ¨^^ I have an easy & efficient solution for you, yes!
<iframe width="100%" height="300" [attr.src]="video.url"></iframe
[attr.src] instead of src "video.url" and not {{video.url}}
Great ;)
There are several possibilities.
More information is needed about your configuration. What distro are you using? Can you connect via 127.0.0.1?
If the issue is with the firewall/iptables, you can add the following lines to /etc/sysconfig/iptables:
-A INPUT -p tcp -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m tcp --dport 443 -j ACCEPT
(Second line is only needed for https)
Make sure this is above any lines that would globally restrict access, like the following:
-A INPUT -j REJECT --reject-with icmp-host-prohibited
Tested on CentOS 6.3
And finally
service iptables restart
I've been playing around with the preferences and added the following to my brackets.json
file (access in Menu Bar: Debug: "Open Preferences File").
"closeTags": {
"dontCloseTags": ["br", "hr", "img", "input", "link", "meta", "area", "base", "col", "command", "embed", "keygen", "param", "source", "track", "wbr"],
"indentTags": ["ul", "ol", "div", "section", "table", "tr"],
}
dontCloseTags
are tags such as <br>
which shouldn't be closed.indentTags
are tags that you want to automatically create a new
indented line - add more as needed!$(window).load()
will work only the first time the page is loaded. If you are doing dynamic stuff (example: click button, wait for some new images to load), this won't work. To achieve that, you can use my plugin:
/**
* Plugin which is applied on a list of img objects and calls
* the specified callback function, only when all of them are loaded (or errored).
* @author: H. Yankov (hristo.yankov at gmail dot com)
* @version: 1.0.0 (Feb/22/2010)
* http://yankov.us
*/
(function($) {
$.fn.batchImageLoad = function(options) {
var images = $(this);
var originalTotalImagesCount = images.size();
var totalImagesCount = originalTotalImagesCount;
var elementsLoaded = 0;
// Init
$.fn.batchImageLoad.defaults = {
loadingCompleteCallback: null,
imageLoadedCallback: null
}
var opts = $.extend({}, $.fn.batchImageLoad.defaults, options);
// Start
images.each(function() {
// The image has already been loaded (cached)
if ($(this)[0].complete) {
totalImagesCount--;
if (opts.imageLoadedCallback) opts.imageLoadedCallback(elementsLoaded, originalTotalImagesCount);
// The image is loading, so attach the listener
} else {
$(this).load(function() {
elementsLoaded++;
if (opts.imageLoadedCallback) opts.imageLoadedCallback(elementsLoaded, originalTotalImagesCount);
// An image has been loaded
if (elementsLoaded >= totalImagesCount)
if (opts.loadingCompleteCallback) opts.loadingCompleteCallback();
});
$(this).error(function() {
elementsLoaded++;
if (opts.imageLoadedCallback) opts.imageLoadedCallback(elementsLoaded, originalTotalImagesCount);
// The image has errored
if (elementsLoaded >= totalImagesCount)
if (opts.loadingCompleteCallback) opts.loadingCompleteCallback();
});
}
});
// There are no unloaded images
if (totalImagesCount <= 0)
if (opts.loadingCompleteCallback) opts.loadingCompleteCallback();
};
})(jQuery);
This answer was for @
Neha Gandhi but I modified it for people who use pdo and mysqli sing mysql functions are not supported. Here is the new answer
<html>
<!--Save this as index.php-->
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="//ajax.aspnetcdn.com/ajax/jquery.validate/1.9/jquery.validate.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$("#display").click(function() {
$.ajax({ //create an ajax request to display.php
type: "GET",
url: "display.php",
dataType: "html", //expect html to be returned
success: function(response){
$("#responsecontainer").html(response);
//alert(response);
}
});
});
});
</script>
<body>
<h3 align="center">Manage Student Details</h3>
<table border="1" align="center">
<tr>
<td> <input type="button" id="display" value="Display All Data" /> </td>
</tr>
</table>
<div id="responsecontainer" align="center">
</div>
</body>
</html>
<?php
// save this as display.php
// show errors
error_reporting(E_ALL);
ini_set('display_errors', 1);
//errors ends here
// call the page for connecting to the db
require_once('dbconnector.php');
?>
<?php
$get_member =" SELECT
empid, lastName, firstName, email, usercode, companyid, userid, jobTitle, cell, employeetype, address ,initials FROM employees";
$user_coder1 = $con->prepare($get_member);
$user_coder1 ->execute();
echo "<table border='1' >
<tr>
<td align=center> <b>Roll No</b></td>
<td align=center><b>Name</b></td>
<td align=center><b>Address</b></td>
<td align=center><b>Stream</b></td></td>
<td align=center><b>Status</b></td>";
while($row =$user_coder1->fetch(PDO::FETCH_ASSOC)){
$firstName = $row['firstName'];
$empid = $row['empid'];
$lastName = $row['lastName'];
$cell = $row['cell'];
echo "<tr>";
echo "<td align=center>$firstName</td>";
echo "<td align=center>$empid</td>";
echo "<td align=center>$lastName </td>";
echo "<td align=center>$cell</td>";
echo "<td align=center>$cell</td>";
echo "</tr>";
}
echo "</table>";
?>
<?php
// save this as dbconnector.php
function connected_Db(){
$dsn = 'mysql:host=localhost;dbname=mydb;charset=utf8';
$opt = array(
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC
);
#echo "Yes we are connected";
return new PDO($dsn,'username','password', $opt);
}
$con = connected_Db();
if($con){
//echo "me is connected ";
}
else {
//echo "Connection faid ";
exit();
}
?>
I think it should be
verify(mockBar, times(2)).doSomething(...)
Sample from mockito javadoc:
ArgumentCaptor<Person> peopleCaptor = ArgumentCaptor.forClass(Person.class);
verify(mock, times(2)).doSomething(peopleCaptor.capture());
List<Person> capturedPeople = peopleCaptor.getAllValues();
assertEquals("John", capturedPeople.get(0).getName());
assertEquals("Jane", capturedPeople.get(1).getName());
Yes, but you can select only one column in your subselect
SELECT (SELECT id FROM bla) AS my_select FROM bla2
you can use below event of keypress on document load.
$(document).keypress(function(e) {
if(e.which == 13) {
yourfunction();
}
});
Thanks
I feel using labels makes the code seem very much like a goto statement. This is just a thought.
Instead, throw an exception at the inner for
loop and encapsulate the two for
loops with a try catch block.
Something like
try {
// ...
for(Object outerForLoop : objectsOuter) {
// ...
for (Object innerForLoop : objectsInner) {
// ...
if (isConditionTrue)
throw new WrappedException("With some useful message. Probably some logging as well.");
}
}
catch (WrappedException) {
// Do something awesome or just don't do anything to swallow the exception.
}
Just a thought. I prefer this code since it gives me better loggability (like that's a word) for me when this is being run in production or something.
Please change only the name of the function; no other change is required
<script>
function totalbandwidthresult() {
alert("fdf");
var fps = Number(document.calculator.fps.value);
var bitrate = Number(document.calculator.bitrate.value);
var numberofcameras = Number(document.calculator.numberofcameras.value);
var encoding = document.calculator.encoding.value;
if (encoding = "mjpeg") {
storage = bitrate * fps;
} else {
storage = bitrate;
}
totalbandwidth = (numberofcameras * storage) / 1000;
alert(totalbandwidth);
document.calculator.totalbandwidthresult.value = totalbandwidth;
}
</script>
<form name="calculator" class="formtable">
<div class="formrow">
<label for="rcname">RC Name</label>
<input type="text" name="rcname">
</div>
<div class="formrow">
<label for="fps">FPS</label>
<input type="text" name="fps">
</div>
<div class="formrow">
<label for="bitrate">Bitrate</label>
<input type="text" name="bitrate">
</div>
<div class="formrow">
<label for="numberofcameras">Number of Cameras</label>
<input type="text" name="numberofcameras">
</div>
<div class="formrow">
<label for="encoding">Encoding</label>
<select name="encoding" id="encodingoptions">
<option value="h264">H.264</option>
<option value="mjpeg">MJPEG</option>
<option value="mpeg4">MPEG4</option>
</select>
</div>Total Storage:
<input type="text" name="totalstorage">Total Bandwidth:
<input type="text" name="totalbandwidth">
<input type="button" value="totalbandwidthresult" onclick="totalbandwidthresult();">
</form>
This one-liner works for me:
WebRequest.DefaultWebProxy.Credentials = CredentialCache.DefaultNetworkCredentials;
CredentialCache.DefaultNetWorkCredentials
is the proxy settings set in Internet Explorer.
WebRequest.DefaultWebProxy.Credentials
is used for all internet connectivity in the application.
From what I can see FOR XML
(as posted earlier) is the only way to do it if you want to also select other columns (which I'd guess most would) as the OP does.
Using COALESCE(@var...
does not allow inclusion of other columns.
Update:
Thanks to programmingsolutions.net there is a way to remove the "trailing" comma to.
By making it into a leading comma and using the STUFF
function of MSSQL you can replace the first character (leading comma) with an empty string as below:
stuff(
(select ',' + Column
from Table
inner where inner.Id = outer.Id
for xml path('')
), 1,1,'') as Values
You can use svg.
<svg viewPort="0 0 12 12" version="1.1"_x000D_
xmlns="http://www.w3.org/2000/svg">_x000D_
<line x1="1" y1="11" _x000D_
x2="11" y2="1" _x000D_
stroke="black" _x000D_
stroke-width="2"/>_x000D_
<line x1="1" y1="1" _x000D_
x2="11" y2="11" _x000D_
stroke="black" _x000D_
stroke-width="2"/>_x000D_
</svg>
_x000D_
Just because @MartinCapodici 's comment is awesome I write here as an answer to give visibility.
All clockwise:
You're missing the data-toggle="tab"
data-tag on your menu urls so your scripts can't tell where your tab switches are:
HTML
<ul class="nav nav-tabs" data-tabs="tabs">
<li class="active"><a data-toggle="tab" href="#red">Red</a></li>
<li><a data-toggle="tab" href="#orange">Orange</a></li>
<li><a data-toggle="tab" href="#yellow">Yellow</a></li>
<li><a data-toggle="tab" href="#green">Green</a></li>
<li><a data-toggle="tab" href="#blue">Blue</a></li>
</ul>
The term bias is used to adjust the final output matrix as the y-intercept does. For instance, in the classic equation, y = mx + c, if c = 0, then the line will always pass through 0. Adding the bias term provides more flexibility and better generalisation to our Neural Network model.
I have changed from 3.2.1 to 4.0.1 and the folder was font and now is called fonts.
src: url('../font/fontawesome-webfont.eot?v=3.2.1');
src: url('../fonts/fontawesome-webfont.eot?v=4.0.1');
I hope it help someone.
From your react native folder run:
cd android && gradlew clean
THEN
cd .. && react-native run-android
Notes:
For mac you may need to change
gradlew
to./gradlew
For the command prompt you may need to change the
&&
to&
For powershell you may need to change the
&&
to;
andgradlew
to.\gradlew.bat
Each command can also be run individually like so
cd android
thengradlew clean
thencd ..
thenreact-native run-android
For future reference, you can quickly create a truth table to check if it evaluates the way you want... it's kind of like Sudoku.
(!isset($action)) && ($action != "add" && $action != "delete"))
Example:
column 1 is issetaction, column 2 and 3 evaluates !="add","delete" respectively
if($a=add) T && (F && T) => T && F => FALSE
if($a=delete) T && (T && F) => T && F => FALSE
if($a=nothing) T && (T && T) => T && T => TRUE
I always use the min and max macros for ints. I'm not sure why anyone would use fmin or fmax for integer values.
The big gotcha with min and max is that they're not functions, even if they look like them. If you do something like:
min (10, BigExpensiveFunctionCall())
That function call may get called twice depending on the implementation of the macro. As such, its best practice in my org to never call min or max with things that aren't a literal or variable.
As of right now, I do not know of any. It appears the code academy folks have set their sites on Ruby on Rails. They do not rule Java out of the picture however.
This alternative approach uses SQL Server's OUTER APPLY
clause. This way, it
The OUTER APPLY
clause can be imagined as a LEFT JOIN
, but with the advantage that you can use values of the main query as parameters in the subquery (here: game).
SELECT colMinPointID
FROM (
SELECT game
FROM table
GROUP BY game
) As rstOuter
OUTER APPLY (
SELECT TOP 1 id As colMinPointID
FROM table As rstInner
WHERE rstInner.game = rstOuter.game
ORDER BY points
) AS rstMinPoints
There is obviously another process listening on the port. You might find out that process by using the following command:
$ lsof -i :8000
or change your tornado app's port. tornado's error info not Explicitly on this.
There should be templates already included in Visio 2007 for software architecture but you might want to check out Visio 2007 templates.
A simple Swift implementation, if you use outlets.
@IBOutlet weak var mapView: MKMapView! {
didSet {
let noLocation = CLLocationCoordinate2D()
let viewRegion = MKCoordinateRegionMakeWithDistance(noLocation, 500, 500)
self.mapView.setRegion(viewRegion, animated: false)
}
}
Based on @Carnal's answer.
I'm new to Android development and I do this:
1) Create a class:
import android.util.Log; public final class Debug{ private Debug (){} public static void out (Object msg){ Log.i ("info", msg.toString ()); } }
When you finish the project delete the class.
2) To print a message to the LogCat write:
Debug.out ("something");
3) Create a filter in the LogCat and write "info" in the input "by Log Tag". All your messages will be written here. :)
Tip: Create another filter to filter all errors to debug easily.
I had the problem due to an extra space in the name of the linked server. "SERVER1, 1234" instead of "SERVER1,1234"
You get this error because your variable subjects
is an Object
not Array
, you can use map()
only for Array.
In case of mapping object you can do this:
{
Object.keys(subjects).map((item, i) => (
<li className="travelcompany-input" key={i}>
<span className="input-label">{ subjects[item].name }</span>
</li>
))
}
This regex works well for me to validate password:
/[ !"#$%&'()*+,-./:;<=>?@[\\\]^_`{|}~]/
This list of special characters (including white space and punctuation) was taken from here: https://www.owasp.org/index.php/Password_special_characters. It was changed a bit, cause backslash ('\') and closing bracket (']') had to be escaped for proper work of the regex. That's why two additional backslash characters were added.
select convert(varchar(10), cast(fmdate as date), 101) from sery
Without cast I was not getting fmdate converted, so fmdate was a string.
In order to create a File from a HTTP URL you need to download the contents from that URL:
URL url = new URL("http://www.google.ro/logos/2011/twain11-hp-bg.jpg");
URLConnection connection = url.openConnection();
InputStream in = connection.getInputStream();
FileOutputStream fos = new FileOutputStream(new File("downloaded.jpg"));
byte[] buf = new byte[512];
while (true) {
int len = in.read(buf);
if (len == -1) {
break;
}
fos.write(buf, 0, len);
}
in.close();
fos.flush();
fos.close();
The downloaded file will be found at the root of your project: {project}/downloaded.jpg
I wrapped the 'svg' tag in 'a' tag and put the onClick event in the 'a' tag
The correct syntax is:
import sampleModule = require('modulename');
or
import * as sampleModule from 'modulename';
Then compile your TypeScript with --module commonjs
.
If the package doesn't come with an index.d.ts
file and its package.json
doesn't have a "typings"
property, tsc
will bark that it doesn't know what 'modulename'
refers to. For this purpose you need to find a .d.ts
file for it on http://definitelytyped.org/, or write one yourself.
If you are writing code for Node.js you will also want the node.d.ts
file from http://definitelytyped.org/.
Create a .htaccess file in the images folder and add this
<IfModule mod_rewrite.c>
RewriteEngine On
# directory browsing
Options All +Indexes
</IfModule>
you can put this Options All -Indexes
in the project file .htaccess
,file to deny direct access to other folders.
This does what you want
I'VE SOLVED THIS WAY:
In my Windows8 64 bit, just restart
ing the service: postgresql-x64-9.5
You need to provide a default value:
new_field = models.CharField(max_length=140, default='SOME STRING')
"C:\Program Files\PuTTY\pscp.exe" -scp file.py server.com:
file.py
will be uploaded into your HOME
dir on remote server.
or when the remote server has a different user, use "C:\Program Files\PuTTY\pscp.exe" -l username -scp file.py server.com:
After connecting to the server pscp will ask for a password.
I wrote the following code that works fine. But I think it only works with .wav
format.
public static synchronized void playSound(final String url) {
new Thread(new Runnable() {
// The wrapper thread is unnecessary, unless it blocks on the
// Clip finishing; see comments.
public void run() {
try {
Clip clip = AudioSystem.getClip();
AudioInputStream inputStream = AudioSystem.getAudioInputStream(
Main.class.getResourceAsStream("/path/to/sounds/" + url));
clip.open(inputStream);
clip.start();
} catch (Exception e) {
System.err.println(e.getMessage());
}
}
}).start();
}
UITableView's selectRowAtIndexPath:animated:scrollPosition: should do the trick.
Just pass UITableViewScrollPositionNone
for scrollPosition and the user won't see any movement.
You should also be able to manually run the action:
[theTableView.delegate tableView:theTableView didSelectRowAtIndexPath:indexPath]
after you selectRowAtIndexPath:animated:scrollPosition:
so the highlight happens as well as any associated logic.
Well, it doesn't get much better than that. Officially, you should use
dataGridView1.DataSource = typeof(List);
dataGridView1.DataSource = itemStates;
It's still a "clear/reset source" kind of solution, but I have yet to find anything else that would reliably refresh the DGV data source.
I have seen many production problems caused by code not handling quotes ("), newline characters within quotes, and quotes within the quotes; e.g.: "he said ""this""" should be parsed into: he said "this"
Like it was mentioned earlier, many CSV parsing examples out there just read a line, and then break up the line by the separator character. This is rather incomplete and problematic.
For me and probably those who prefer build verses buy (or use somebody else's code and deal with their dependencies), I got down to classic text parsing programming and that worked for me:
/**
* Parse CSV data into an array of String arrays. It handles double quoted values.
* @param is input stream
* @param separator
* @param trimValues
* @param skipEmptyLines
* @return an array of String arrays
* @throws IOException
*/
public static String[][] parseCsvData(InputStream is, char separator, boolean trimValues, boolean skipEmptyLines)
throws IOException
{
ArrayList<String[]> data = new ArrayList<String[]>();
ArrayList<String> row = new ArrayList<String>();
StringBuffer value = new StringBuffer();
int ch = -1;
int prevCh = -1;
boolean inQuotedValue = false;
boolean quoteAtStart = false;
boolean rowIsEmpty = true;
boolean isEOF = false;
while (true)
{
prevCh = ch;
ch = (isEOF) ? -1 : is.read();
// Handle carriage return line feed
if (prevCh == '\r' && ch == '\n')
{
continue;
}
if (inQuotedValue)
{
if (ch == -1)
{
inQuotedValue = false;
isEOF = true;
}
else
{
value.append((char)ch);
if (ch == '"')
{
inQuotedValue = false;
}
}
}
else if (ch == separator || ch == '\r' || ch == '\n' || ch == -1)
{
// Add the value to the row
String s = value.toString();
if (quoteAtStart && s.endsWith("\""))
{
s = s.substring(1, s.length() - 1);
}
if (trimValues)
{
s = s.trim();
}
rowIsEmpty = (s.length() > 0) ? false : rowIsEmpty;
row.add(s);
value.setLength(0);
if (ch == '\r' || ch == '\n' || ch == -1)
{
// Add the row to the result
if (!skipEmptyLines || !rowIsEmpty)
{
data.add(row.toArray(new String[0]));
}
row.clear();
rowIsEmpty = true;
if (ch == -1)
{
break;
}
}
}
else if (prevCh == '"')
{
inQuotedValue = true;
}
else
{
if (ch == '"')
{
inQuotedValue = true;
quoteAtStart = (value.length() == 0) ? true : false;
}
value.append((char)ch);
}
}
return data.toArray(new String[0][]);
}
Unit Test:
String[][] data = parseCsvData(new ByteArrayInputStream("foo,\"\",,\"bar\",\"\"\"music\"\"\",\"carriage\r\nreturn\",\"new\nline\"\r\nnext,line".getBytes()), ',', true, true);
for (int rowIdx = 0; rowIdx < data.length; rowIdx++)
{
System.out.println(Arrays.asList(data[rowIdx]));
}
generates the output:
[foo, , , bar, "music", carriage
return, new
line]
[next, line]
Here is how I handle mine. I create a file called template.php in my views folder. This file contains all of my my main site layout. Then from this template file I call my additional views. Here is an example:
<!doctype html>
<html lang="en">
<head>
<meta charset=utf-8">
<title><?php echo $title; ?></title>
<link href="<?php echo base_url() ;?>assets/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
<link href="<?php echo base_url() ;?>assets/css/main.css" rel="stylesheet" type="text/css" />
<noscript>
Javascript is not enabled! Please turn on Javascript to use this site.
</noscript>
<script type="text/javascript">
//<![CDATA[
base_url = '<?php echo base_url();?>';
//]]>
</script>
</head>
<body>
<div id="wrapper">
<div id="container">
<div id="top">
<?php $this->load->view('top');?>
</div>
<div id="main">
<?php $this->load->view($main);?>
</div>
<div id="footer">
<?php $this->load->view('bottom');?>
</div>
</div><!-- end container -->
</div><!-- end wrapper -->
<script type="text/javascript" src="<?php echo base_url();?>assets/js/jquery-1.8.2.min.js" ></script>
<script type="text/javascript" src="<?php echo base_url();?>assets/js/bootstrap.min.js"></script>
</body>
</html>
From my controller, I will pass the name of the view to $data['main']. So I will do something like this then:
class Main extends CI_Controller {
public function index()
{
$data['main'] = 'main_view';
$data['title'] = 'Site Title';
$this->load->vars($data);
$this->load->view('template', $data);
}
}
Add reference .dll file to project. Right, Click on Project reference folder --> click on Add Reference -->.Net tab you will find System.Drawing --> click on ok this will add a reference to System.Drawing
Python:
python -c "from datetime import datetime; print(datetime.fromtimestamp($TIMESTAMP))"
For Play 2.3.x
activator "run -Dhttp.port=9001"
In Maven project, You can build jar automatically using Maven War plugin by setting archiveClasses
to true
. Example below.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<archiveClasses>true</archiveClasses>
</configuration>
</plugin>
If you are using an <img>
tag for the SVG, then you cannot manipulate its contents (as far as I know).
As the accepted answer shows, using <object>
is an option.
I needed this recently and used gulp-inject
during my gulp build to inject the contents of an SVG file directly into the HTML document as an <svg>
element, which is then very easy to work with using CSS selectors and querySelector
/getElementBy*
.
set timing on <br>
set linesize 180<br>
spool template.log
/*<br>
##########################################################################<br>
-- Name : Template.sql<br>
-- Date : (sysdate) <br>
-- Author : Duncan van der Zalm - dvdzalm<br>
-- Company : stanDaarD-Z.nl<br>
-- Purpose : <br>
-- Usage sqlplus <br>
-- Impact :<br>
-- Required grants : sel on A, upd on B, drop on C<br>
-- Called by : some other process<br
##########################################################################<br>
-- ver user date change <br>
-- 1.0 DDZ 20110622 initial<br>
##########################################################################<br>
*/<br>
sho user<br>
select name from v$database;
select to_char(sysdate, 'Day DD Month yyyy HH24:MI:SS') "Start time"
from dual
;
-- script
select to_char(sysdate, 'Day DD Month yyyy HH24:MI:SS') "End time"
from dual
;
spool off
We can mock list properly for foreach loop. Please find below code snippet and explanation.
This is my actual class method where I want to create test case by mocking list.
this.nameList
is a list object.
public void setOptions(){
// ....
for (String str : this.nameList) {
str = "-"+str;
}
// ....
}
The foreach loop internally works on iterator, so here we crated mock of iterator.
Mockito framework has facility to return pair of values on particular method call by using Mockito.when().thenReturn()
, i.e. on hasNext()
we pass 1st true and on second call false, so that our loop will continue only two times. On next()
we just return actual return value.
@Test
public void testSetOptions(){
// ...
Iterator<SampleFilter> itr = Mockito.mock(Iterator.class);
Mockito.when(itr.hasNext()).thenReturn(true, false);
Mockito.when(itr.next()).thenReturn(Mockito.any(String.class);
List mockNameList = Mockito.mock(List.class);
Mockito.when(mockNameList.iterator()).thenReturn(itr);
// ...
}
In this way we can avoid sending actual list to test by using mock of list.
$(document).ready(function () {
$("#tbl_Customer tbody tr .companyname").click(function () {
var comapnyname = $(this).closest(".trclass").find(".companyname").text();
var CompanyAddress = $(this).closest(".trclass").find(".CompanyAddress").text();
var CompanyEmail = $(this).closest(".trclass").find(".CompanyEmail").text();
var CompanyContactNumber = $(this).closest(".trclass").find(".CompanyContactNumber").text();
var CompanyContactPerson = $(this).closest(".trclass").find(".CompanyContactPerson").text();
// var clickedCell = $(this);
alert(comapnyname);
alert(CompanyAddress);
alert(CompanyEmail);
alert(CompanyContactNumber);
alert(CompanyContactPerson);
//alert(clickedCell.text());
});
});
Given this piece of HTML code:
<a href='https://facebook.com/'>Facebook</a>
<a href='https://google.ca/'>Google</a>
<input type='text' placeholder='an input box'>
We can use this JavaScript:
function checkTabPress(e) {
'use strict';
var ele = document.activeElement;
if (e.keyCode === 9 && ele.nodeName.toLowerCase() === 'a') {
console.log(ele.href);
}
}
document.addEventListener('keyup', function (e) {
checkTabPress(e);
}, false);
I have bound an event listener to the document
element for the keyUp
event, which triggers a function to check if the Tab key was pressed (or technically, released).
The function checks the currently focused element and whether the NodeName
is a
. If so, it enters the if
block and, in my case, writes the value of the href
property to the JavaScript console.
Here's a jsFiddle
This will require Node.js 7 or later with a support for Promises and Async/Await.
Create a wrapper function that leverage promises to control the behavior of the child_process.exec
command.
Using promises and an asynchronous function, you can mimic the behavior of a shell returning the output, without falling into a callback hell and with a pretty neat API. Using the await
keyword, you can create a script that reads easily, while still be able to get the work of child_process.exec
done.
const childProcess = require("child_process");
/**
* @param {string} command A shell command to execute
* @return {Promise<string>} A promise that resolve to the output of the shell command, or an error
* @example const output = await execute("ls -alh");
*/
function execute(command) {
/**
* @param {Function} resolve A function that resolves the promise
* @param {Function} reject A function that fails the promise
* @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise
*/
return new Promise(function(resolve, reject) {
/**
* @param {Error} error An error triggered during the execution of the childProcess.exec command
* @param {string|Buffer} standardOutput The result of the shell command execution
* @param {string|Buffer} standardError The error resulting of the shell command execution
* @see https://nodejs.org/api/child_process.html#child_process_child_process_exec_command_options_callback
*/
childProcess.exec(command, function(error, standardOutput, standardError) {
if (error) {
reject();
return;
}
if (standardError) {
reject(standardError);
return;
}
resolve(standardOutput);
});
});
}
async function main() {
try {
const passwdContent = await execute("cat /etc/passwd");
console.log(passwdContent);
} catch (error) {
console.error(error.toString());
}
try {
const shadowContent = await execute("cat /etc/shadow");
console.log(shadowContent);
} catch (error) {
console.error(error.toString());
}
}
main();
root:x:0:0::/root:/bin/bash
[output trimmed, bottom line it succeeded]
Error: Command failed: cat /etc/shadow
cat: /etc/shadow: Permission denied
Here is a swift 4 sample code which execute API calling using SOAP service format.
func callSOAPWSToGetData() {
let strSOAPMessage =
"<?xml version=\"1.0\" encoding=\"utf-8\"?>" +
"<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">" +
"<soap:Body>" +
"<CelsiusToFahrenheit xmlns=\"http://www.yourapi.com/webservices/\">" +
"<Celsius>50</Celsius>" +
"</CelsiusToFahrenheit>" +
"</soap:Body>" +
"</soap:Envelope>"
guard let url = URL.init(string: "http://www.example.org") else {
return
}
var request = URLRequest.init(url: url)
let length = (strSOAPMessage as NSString).length
request.addValue("application/soap+xml; charset=utf-8", forHTTPHeaderField: "Content-Type")
request.addValue("http://www.yourapi.com/webservices/CelsiusToFahrenheit", forHTTPHeaderField: "SOAPAction")
request.addValue(String(length), forHTTPHeaderField: "Content-Length")
request.httpMethod = "POST"
request.httpBody = strSOAPMessage.data(using: .utf8)
let config = URLSessionConfiguration.default
let session = URLSession(configuration: config)
let task = session.dataTask(with: request) { (data, response, error) in
guard let responseData = data else {
print("Error: did not receive data")
return
}
guard error == nil else {
print("error calling GET on /todos/1")
print(error ?? "")
return
}
print(responseData)
let strData = String.init(data: responseData, encoding: .utf8)
print(strData ?? "")
}
task.resume()
}
Sorry to dig up an old question but in case someone stumbles onto this thread and wants a quicker solution.
Bulk inserting a unknown width file with \n row terminators into a temp table that is created outside of the EXEC statement.
DECLARE @SQL VARCHAR(8000)
IF OBJECT_ID('TempDB..#BulkInsert') IS NOT NULL
BEGIN
DROP TABLE #BulkInsert
END
CREATE TABLE #BulkInsert
(
Line VARCHAR(MAX)
)
SET @SQL = 'BULK INSERT #BulkInser FROM ''##FILEPATH##'' WITH (ROWTERMINATOR = ''\n'')'
EXEC (@SQL)
SELECT * FROM #BulkInsert
Further support that dynamic SQL within an EXEC statement has access to temp tables outside of the EXEC statement. http://sqlfiddle.com/#!3/d41d8/19343
DECLARE @SQL VARCHAR(8000)
IF OBJECT_ID('TempDB..#BulkInsert') IS NOT NULL
BEGIN
DROP TABLE #BulkInsert
END
CREATE TABLE #BulkInsert
(
Line VARCHAR(MAX)
)
INSERT INTO #BulkInsert
(
Line
)
SELECT 1
UNION SELECT 2
UNION SELECT 3
SET @SQL = 'SELECT * FROM #BulkInsert'
EXEC (@SQL)
Further support, written for MSSQL2000 http://technet.microsoft.com/en-us/library/aa175921(v=sql.80).aspx
Example at the bottom of the link
DECLARE @cmd VARCHAR(1000), @ExecError INT
CREATE TABLE #ErrFile (ExecError INT)
SET @cmd = 'EXEC GetTableCount ' +
'''pubs.dbo.authors''' +
'INSERT #ErrFile VALUES(@@ERROR)'
EXEC(@cmd)
SET @ExecError = (SELECT * FROM #ErrFile)
SELECT @ExecError AS '@@ERROR'
The best way to do this is to first generate a .c file, and then compile it with tcc to a .pyd file
Note: Windows-onlyRequirements
Install:
sudo pip install -U cython
To obfuscate your .py file:
pyobfuscate.py myfile.py >obfuscated.py
To generate a .c file,
Add an Optionalinit<filename>()
function to your .py file
cython --embed file.py
cp Python.h tcc\include
tcc file.c -o file.pyd -shared -I\path\to\Python\include -L\path\to\Python\lib
import .pyd file into app.exe
Here is another way how you can format using 'f-string' format:
print(
f"{'Trades:':<15}{cnt:>10}",
f"\n{'Wins:':<15}{wins:>10}",
f"\n{'Losses:':<15}{losses:>10}",
f"\n{'Breakeven:':<15}{evens:>10}",
f"\n{'Win/Loss Ratio:':<15}{win_r:>10}",
f"\n{'Mean Win:':<15}{mean_w:>10}",
f"\n{'Mean Loss:':<15}{mean_l:>10}",
f"\n{'Mean:':<15}{mean_trd:>10}",
f"\n{'Std Dev:':<15}{sd:>10}",
f"\n{'Max Loss:':<15}{max_l:>10}",
f"\n{'Max Win:':<15}{max_w:>10}",
f"\n{'Sharpe Ratio:':<15}{sharpe_r:>10}",
)
This will provide the following output:
Trades: 2304
Wins: 1232
Losses: 1035
Breakeven: 37
Win/Loss Ratio: 1.19
Mean Win: 0.381
Mean Loss: -0.395
Mean: 0.026
Std Dev: 0.56
Max Loss: -3.406
Max Win: 4.09
Sharpe Ratio: 0.7395
What you are doing here is you are saying that the first column is 15 chars long and it's left justified and second column (values) is 10 chars long and it's right justified.
I also struggled finding articles on how to just generate the token part. I never found one and wrote my own. So if it helps:
The things to do are:
Microsoft.Owin
Microsoft.Owin.Host.SystemWeb
Microsoft.Owin.Security.OAuth
Microsoft.AspNet.Identity.Owin
startup
classThen create a HTML and a JavaScript (index.js
) file with these contents:
var loginData = 'grant_type=password&[email protected]&password=test123';
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState === 4 && xmlhttp.status === 200) {
alert(xmlhttp.responseText);
}
}
xmlhttp.open("POST", "/token", true);
xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlhttp.send(loginData);
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript" src="index.js"></script>
</body>
</html>
The OWIN startup
class should have this content:
using System;
using System.Security.Claims;
using Microsoft.Owin;
using Microsoft.Owin.Security.OAuth;
using OAuth20;
using Owin;
[assembly: OwinStartup(typeof(Startup))]
namespace OAuth20
{
public class Startup
{
public static OAuthAuthorizationServerOptions OAuthOptions { get; private set; }
public void Configuration(IAppBuilder app)
{
OAuthOptions = new OAuthAuthorizationServerOptions()
{
TokenEndpointPath = new PathString("/token"),
Provider = new OAuthAuthorizationServerProvider()
{
OnValidateClientAuthentication = async (context) =>
{
context.Validated();
},
OnGrantResourceOwnerCredentials = async (context) =>
{
if (context.UserName == "[email protected]" && context.Password == "test123")
{
ClaimsIdentity oAuthIdentity = new ClaimsIdentity(context.Options.AuthenticationType);
context.Validated(oAuthIdentity);
}
}
},
AllowInsecureHttp = true,
AccessTokenExpireTimeSpan = TimeSpan.FromDays(1)
};
app.UseOAuthBearerTokens(OAuthOptions);
}
}
}
Run your project. The token should be displayed in the pop-up.
In case anyone landed here in search of "how to specify types of multiple return values?", use Tuple[type_value1, ..., type_valueN]
from typing import Tuple
def f() -> Tuple[dict, str]:
a = {1: 2}
b = "hello"
return a, b
Here is a modified version of Steven Harris' that is plain ES5 and returns an object keyed on the id rather than returning an array of nodes at both the top level and for the children.
unflattenToObject = function(array, parent) {
var tree = {};
parent = typeof parent !== 'undefined' ? parent : {id: 0};
var childrenArray = array.filter(function(child) {
return child.parentid == parent.id;
});
if (childrenArray.length > 0) {
var childrenObject = {};
// Transform children into a hash/object keyed on token
childrenArray.forEach(function(child) {
childrenObject[child.id] = child;
});
if (parent.id == 0) {
tree = childrenObject;
} else {
parent['children'] = childrenObject;
}
childrenArray.forEach(function(child) {
unflattenToObject(array, child);
})
}
return tree;
};
var arr = [
{'id':1 ,'parentid': 0},
{'id':2 ,'parentid': 1},
{'id':3 ,'parentid': 1},
{'id':4 ,'parentid': 2},
{'id':5 ,'parentid': 0},
{'id':6 ,'parentid': 0},
{'id':7 ,'parentid': 4}
];
tree = unflattenToObject(arr);
Make sure that the value of the column is really NULL and not an empty string or 0.
Tuples, in python can't have their values changed. If you'd like to change the contained values though I suggest using a list:
[1,2,3]
not (1,2,3)
I like to use xargs
instead of while
. xargs
is powerful and command line friendly
cat peptides.txt | xargs -I % sh -c "echo %"
With xargs
, you can also add verbosity with -t
and validation with -p
To get the version of JVM currently running the program
System.out.println(Runtime.class.getPackage().getImplementationVersion());
You can try this all of method in our html page..
1st way
body { overflow-x:hidden; }
2nd way You can use the following in your CSS body tag:
overflow-y: scroll; overflow-x: hidden;
That will remove your scrollbar.
3rd way
body { min-width: 1167px; }
5th way
html, body { max-width: 100%; overflow-x: hidden; }
6th way
element { max-width: 100vw; overflow-x: hidden; }
4th way..
var docWidth = document.documentElement.offsetWidth; [].forEach.call( document.querySelectorAll('*'), function(el) { if (el.offsetWidth > docWidth) { console.log(el); } } );
Now i m searching about more..!!!!
Moshe's solution is great but the problem may still exist if you need to put the list inside a div
. (read: CSS counter-reset on nested list)
This style could prevent that issue:
ol > li {_x000D_
counter-increment: item;_x000D_
}_x000D_
_x000D_
ol > li:first-child {_x000D_
counter-reset: item;_x000D_
}_x000D_
_x000D_
ol ol > li {_x000D_
display: block;_x000D_
}_x000D_
_x000D_
ol ol > li:before {_x000D_
content: counters(item, ".") ". ";_x000D_
margin-left: -20px;_x000D_
}
_x000D_
<ol>_x000D_
<li>list not nested in div</li>_x000D_
</ol>_x000D_
_x000D_
<hr>_x000D_
_x000D_
<div>_x000D_
<ol>_x000D_
<li>nested in div</li>_x000D_
<li>two_x000D_
<ol>_x000D_
<li>two.one</li>_x000D_
<li>two.two</li>_x000D_
<li>two.three</li>_x000D_
</ol>_x000D_
</li>_x000D_
<li>three_x000D_
<ol>_x000D_
<li>three.one</li>_x000D_
<li>three.two_x000D_
<ol>_x000D_
<li>three.two.one</li>_x000D_
<li>three.two.two</li>_x000D_
</ol>_x000D_
</li>_x000D_
</ol>_x000D_
</li>_x000D_
<li>four</li>_x000D_
</ol>_x000D_
</div>
_x000D_
You can also set the counter-reset on li:before
.
Something like a "Stopwatch" object comes to my mind:
Usage:
var st = new Stopwatch();
st.start(); //Start the stopwatch
// As a test, I use the setTimeout function to delay st.stop();
setTimeout(function (){
st.stop(); // Stop it 5 seconds later...
alert(st.getSeconds());
}, 5000);
Implementation:
function Stopwatch(){
var startTime, endTime, instance = this;
this.start = function (){
startTime = new Date();
};
this.stop = function (){
endTime = new Date();
}
this.clear = function (){
startTime = null;
endTime = null;
}
this.getSeconds = function(){
if (!endTime){
return 0;
}
return Math.round((endTime.getTime() - startTime.getTime()) / 1000);
}
this.getMinutes = function(){
return instance.getSeconds() / 60;
}
this.getHours = function(){
return instance.getSeconds() / 60 / 60;
}
this.getDays = function(){
return instance.getHours() / 24;
}
}
jQuery.val() and .text() will never return 'undefined' for an empty selection. It always returns an empty string (i.e. ""). .html() will return null if the element doesn't exist though.You need to do:
if(page_name != '')
For other variables that don't come from something like jQuery.val() you would do this though:
if(typeof page_name != 'undefined')
You just have to use the typeof
operator.
If you don't want to use the ColorTranslator, you can do it in easily:
string colorcode = "#FFFFFF00";
int argb = Int32.Parse(colorcode.Replace("#", ""), NumberStyles.HexNumber);
Color clr = Color.FromArgb(argb);
The colorcode is just the hexadecimal representation of the ARGB value.
EDIT
If you need to use 4 values instead of a single integer, you can use this (combining several comments):
string colorcode = "#FFFFFF00";
colorcode = colorcode.TrimStart('#');
Color col; // from System.Drawing or System.Windows.Media
if (colorcode.Length == 6)
col = Color.FromArgb(255, // hardcoded opaque
int.Parse(colorcode.Substring(0,2), NumberStyles.HexNumber),
int.Parse(colorcode.Substring(2,2), NumberStyles.HexNumber),
int.Parse(colorcode.Substring(4,2), NumberStyles.HexNumber));
else // assuming length of 8
col = Color.FromArgb(
int.Parse(colorcode.Substring(0, 2), NumberStyles.HexNumber),
int.Parse(colorcode.Substring(2, 2), NumberStyles.HexNumber),
int.Parse(colorcode.Substring(4, 2), NumberStyles.HexNumber),
int.Parse(colorcode.Substring(6, 2), NumberStyles.HexNumber));
Note 1: NumberStyles is in System.Globalization.
Note 2: please provide your own error checking (colorcode should be a hexadecimal value of either 6 or 8 characters)
Well, longs can't hold anything but integers.
One option is to use a float: float('234.89')
The other option is to truncate or round. Converting from a float to a long will truncate for you: long(float('234.89'))
>>> long(float('1.1'))
1L
>>> long(float('1.9'))
1L
>>> long(round(float('1.1')))
1L
>>> long(round(float('1.9')))
2L
I had the same problem and I found this solution working with bindParam :
bindParam(':param', $myvar = NULL, PDO::PARAM_INT);
There is a std::swap
in <algorithm>
The Python installer installs Python Launcher for Windows. This program (py.exe
) is associated with the Python file extensions and looks for a "shebang" comment to specify the python version to run. This allows many versions of Python to co-exist and allows Python scripts to explicitly specify which version to use, if desired. If it is not specified, the default is to use the latest Python version for the current architecture (x86 or x64). This default can be customized through a py.ini
file or PY_PYTHON
environment variable. See the docs for more details.
Newer versions of Python update the launcher. The latest version has a py -0
option to list the installed Pythons and indicate the current default.
Here's how to check if the launcher is registered correctly from the console:
C:\>assoc .py
.py=Python.File
C:\>ftype Python.File
Python.File="C:\Windows\py.exe" "%1" %*
Above, .py
files are associated with the Python.File
type. The command line for Python.File
is the Python Launcher, which is installed in the Windows directory since it is always in the PATH.
For the association to work, run scripts from the command line with script.py
, not "python script.py", otherwise python
will be run instead of py
. If fact it's best to remove Python directories from the PATH, so "python" won't run anything and enforce using py
.
py.exe
can also be run with switches to force a Python version:
py -3 script.py # select latest Python 3.X version to be used.
py -3.6 script.py # select version 3.6 specifically.
py -3.9-32 script.py # select version 3.9 32-bit specifically.
py -0 # list installed Python versions (latest PyLauncher).
Additionally, add .py;.pyw;.pyc;.pyo
to the PATHEXT
environment variable and then the command line can just be script
with no extension.
File extensions do not have any bearing or impact on the content of the file. You can hold YAML content in files with any extension: .yml
, .yaml
or indeed anything else.
The (rather sparse) YAML FAQ recommends that you use .yaml
in preference to .yml
, but for historic reasons many Windows programmers are still scared of using extensions with more than three characters and so opt to use .yml
instead.
So, what really matters is what is inside the file, rather than what its extension is.
I wrote this one:
public static String join(Collection<String> col, String delim) {
StringBuilder sb = new StringBuilder();
Iterator<String> iter = col.iterator();
if (iter.hasNext())
sb.append(iter.next());
while (iter.hasNext()) {
sb.append(delim);
sb.append(iter.next());
}
return sb.toString();
}
Collection
isn't supported by JSP, so for TLD I wrote:
public static String join(List<?> list, String delim) {
int len = list.size();
if (len == 0)
return "";
StringBuilder sb = new StringBuilder(list.get(0).toString());
for (int i = 1; i < len; i++) {
sb.append(delim);
sb.append(list.get(i).toString());
}
return sb.toString();
}
and put to .tld
file:
<?xml version="1.0" encoding="UTF-8"?>
<taglib version="2.1" xmlns="http://java.sun.com/xml/ns/javaee"
<function>
<name>join</name>
<function-class>com.core.util.ReportUtil</function-class>
<function-signature>java.lang.String join(java.util.List, java.lang.String)</function-signature>
</function>
</taglib>
and use it in JSP files as:
<%@taglib prefix="funnyFmt" uri="tag:com.core.util,2013:funnyFmt"%>
${funnyFmt:join(books, ", ")}
I would use to table header tag below for a text in a table to make it standout from the rest of the table content.
<table>
<tr>
<th>Dimension:</th>
<td>98cm x 71cm</td>
</tr>
</table
From the bash
manpage:
[[ expression ]]
- return a status of 0 or 1 depending on the evaluation of the conditional expression expression.
And, for expressions, one of the options is:
expression1 && expression2
- true if bothexpression1
andexpression2
are true.
So you can and
them together as follows (-n
is the opposite of -z
so we can get rid of the !
):
if [[ -n "$var" && -e "$var" ]] ; then
echo "'$var' is non-empty and the file exists"
fi
However, I don't think it's needed in this case, -e xyzzy
is true if the xyzzy
file exists and can quite easily handle empty strings. If that's what you want then you don't actually need the -z
non-empty check:
pax> VAR=xyzzy
pax> if [[ -e $VAR ]] ; then echo yes ; fi
pax> VAR=/tmp
pax> if [[ -e $VAR ]] ; then echo yes ; fi
yes
In other words, just use:
if [[ -e "$var" ]] ; then
echo "'$var' exists"
fi
You can use crypto-js.
To use crypto-js, you need to load core.js then md5.js .
A list of URLs are here https://cdnjs.com/libraries/crypto-js
cryptojs is also available in zip form here https://code.google.com/archive/p/crypto-js/downloads
There is an answer from answerer 'amal' in 2013, that is similar to this but a)his link to md5.js no longer works b)he didn't load core.js beforehand, which is necessary.
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/components/core.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/md5.js"></script>
<script>
var hash = CryptoJS.MD5("Message");
console.log(hash);
</script>
</head>
<body>
</body>
</html>
I like the build-in pathlib libary because of quick options like directory= Path.cwd()
Together with opencv it's quite easy to read pngs to numpy arrays.
In this example you can even check the prefix of the image.
from pathlib import Path
import cv2
prefix = "p00"
suffix = ".png"
directory= Path.cwd()
file_names= [subp.name for subp in directory.rglob('*') if (prefix in subp.name) & (suffix == subp.suffix)]
file_names.sort()
print(file_names)
all_frames= []
for file_name in file_names:
file_path = str(directory / file_name)
frame=cv2.imread(file_path)
all_frames.append(frame)
print(type(all_frames[0]))
print(all_frames[0] [1][1])
Output:
['p000.png', 'p001.png', 'p002.png', 'p003.png', 'p004.png', 'p005.png', 'p006.png', 'p007.png', 'p008.png', 'p009.png']
<class 'numpy.ndarray'>
[255 255 255]
something like this
try
{
...
}
catch (FooException e)
{
throw e;
}
catch (Exception e)
{
...
}
The Java 7 Files utility type is useful for working with files:
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.io.IOException;
import java.util.*;
public class WriteReadUtf8 {
public static void main(String[] args) throws IOException {
List<String> lines = Arrays.asList("These", "are", "lines");
Path textFile = Paths.get("foo.txt");
Files.write(textFile, lines, StandardCharsets.UTF_8);
List<String> read = Files.readAllLines(textFile, StandardCharsets.UTF_8);
System.out.println(lines.equals(read));
}
}
The Java 8 version allows you to omit the Charset argument - the methods default to UTF-8.
How can I create a zip archive of a directory structure in Python?
In Python 2.7+, shutil
has a make_archive
function.
from shutil import make_archive
make_archive(
'zipfile_name',
'zip', # the archive format - or tar, bztar, gztar
root_dir=None, # root for archive - current working dir if None
base_dir=None) # start archiving from here - cwd if None too
Here the zipped archive will be named zipfile_name.zip
. If base_dir
is farther down from root_dir
it will exclude files not in the base_dir
, but still archive the files in the parent dirs up to the root_dir
.
I did have an issue testing this on Cygwin with 2.7 - it wants a root_dir argument, for cwd:
make_archive('zipfile_name', 'zip', root_dir='.')
You can do this with Python from the shell also using the zipfile
module:
$ python -m zipfile -c zipname sourcedir
Where zipname
is the name of the destination file you want (add .zip
if you want it, it won't do it automatically) and sourcedir is the path to the directory.
If you're trying to zip up a python package with a __init__.py
and __main__.py
, and you don't want the parent dir, it's
$ python -m zipfile -c zipname sourcedir/*
And
$ python zipname
would run the package. (Note that you can't run subpackages as the entry point from a zipped archive.)
If you have python3.5+, and specifically want to zip up a Python package, use zipapp:
$ python -m zipapp myapp
$ python myapp.pyz
For a string variable s
:
s.Split(new string[]{Environment.NewLine},StringSplitOptions.None)
This uses your environment's definition of line endings. On Windows, line endings are CR-LF (carriage return, line feed) or in C#'s escape characters \r\n
.
This is a reliable solution, because if you recombine the lines with String.Join
, this equals your original string:
var lines = s.Split(new string[]{Environment.NewLine},StringSplitOptions.None);
var reconstituted = String.Join(Environment.NewLine,lines);
Debug.Assert(s==reconstituted);
What not to do:
StringSplitOptions.RemoveEmptyEntries
, because this will break markup such as Markdown where empty lines have syntactic purpose.new char[]{Environment.NewLine}
, because on Windows this will create one empty string element for each new line.To be relative to the root directory, just start the URI with a /
<link type="text/css" rel="stylesheet" href="/style.css" />
<script src="/script.js" type="text/javascript"></script>
I'm getting the same error on Mac OS X 10.11.6:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
After a lot of agonizing and digging through advice here and in related questions, none of which seemed to fix the problem, I went back and deleted the installed folders, and just did brew install mysql
.
Still getting the same error with most commands, but this works:
/usr/local/bin/mysqld
and returns:
/usr/local/bin/mysqld: ready for connections.
Version: '5.7.12' socket: '/tmp/mysql.sock' port: 3306 Homebrew
I've been trying to do something very similar but not using the nodes. However, my xml structure is a little different.
You have it like this:
<Metrics>
<Metric id="TransactionCleanupThread.RefundOldTrans" type="timer" ...>
If it were like this instead:
<Metrics>
<Metric>
<id>TransactionCleanupThread.RefundOldTrans</id>
<type>timer</type>
.
.
.
Then you could simply use this SQL statement.
SELECT
Sqm.SqmId,
Data.value('(/Sqm/Metrics/Metric/id)[1]', 'varchar(max)') as id,
Data.value('(/Sqm/Metrics/Metric/type)[1]', 'varchar(max)') AS type,
Data.value('(/Sqm/Metrics/Metric/unit)[1]', 'varchar(max)') AS unit,
Data.value('(/Sqm/Metrics/Metric/sum)[1]', 'varchar(max)') AS sum,
Data.value('(/Sqm/Metrics/Metric/count)[1]', 'varchar(max)') AS count,
Data.value('(/Sqm/Metrics/Metric/minValue)[1]', 'varchar(max)') AS minValue,
Data.value('(/Sqm/Metrics/Metric/maxValue)[1]', 'varchar(max)') AS maxValue,
Data.value('(/Sqm/Metrics/Metric/stdDeviation)[1]', 'varchar(max)') AS stdDeviation,
FROM Sqm
To me this is much less confusing than using the outer apply or cross apply.
I hope this helps someone else looking for a simpler solution!
Whenever you want to extend the properties of User.Identity with any additional properties like the question above, add these properties to the ApplicationUser class first like so:
public class ApplicationUser : IdentityUser
{
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here
return userIdentity;
}
// Your Extended Properties
public long? OrganizationId { get; set; }
}
Then what you need is to create an extension method like so (I create mine in an new Extensions folder):
namespace App.Extensions
{
public static class IdentityExtensions
{
public static string GetOrganizationId(this IIdentity identity)
{
var claim = ((ClaimsIdentity)identity).FindFirst("OrganizationId");
// Test for null to avoid issues during local testing
return (claim != null) ? claim.Value : string.Empty;
}
}
}
When you create the Identity in the ApplicationUser class, just add the Claim -> OrganizationId like so:
public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
{
// Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
// Add custom user claims here => this.OrganizationId is a value stored in database against the user
userIdentity.AddClaim(new Claim("OrganizationId", this.OrganizationId.ToString()));
return userIdentity;
}
Once you added the claim and have your extension method in place, to make it available as a property on your User.Identity, add a using statement on the page/file you want to access it:
in my case: using App.Extensions;
within a Controller and @using. App.Extensions
withing a .cshtml View file.
EDIT:
What you can also do to avoid adding a using statement in every View is to go to the Views folder, and locate the Web.config file in there.
Now look for the <namespaces>
tag and add your extension namespace there like so:
<add namespace="App.Extensions" />
Save your file and you're done. Now every View will know of your extensions.
You can access the Extension Method:
var orgId = User.Identity.GetOrganizationId();
I came across this post when looking to parse an input like: word1,word2,...
none of the above helped me. solved it by using awk. If it helps someone:
STRING="value1,value2,value3"
array=`echo $STRING | awk -F ',' '{ s = $1; for (i = 2; i <= NF; i++) s = s "\n"$i; print s; }'`
for word in ${array}
do
echo "This is the word $word"
done
Before you call an instance method or instance variable It needs a object(Instance). When instance variable is called from static method compiler doesn't know which is the object this variable belongs to. Because static methods doesn't have an object (Only one copy always). When you call an instance variable or instance methods from instance method it refer the this
object. It means the variable belongs to whatever object created and each object have it's own copy of instance methods and variables.
Static variables are marked as static
and instance variables doesn't have specific keyword.
req
is an object containing information about the HTTP request that raised the event. In response to req
, you use res
to send back the desired HTTP response.
Those parameters can be named anything. You could change that code to this if it's more clear:
app.get('/user/:id', function(request, response){
response.send('user ' + request.params.id);
});
Edit:
Say you have this method:
app.get('/people.json', function(request, response) { });
The request will be an object with properties like these (just to name a few):
request.url
, which will be "/people.json"
when this particular action is triggeredrequest.method
, which will be "GET"
in this case, hence the app.get()
call.request.headers
, containing items like request.headers.accept
, which you can use to determine what kind of browser made the request, what sort of responses it can handle, whether or not it's able to understand HTTP compression, etc.request.query
(e.g. /people.json?foo=bar
would result in request.query.foo
containing the string "bar"
).To respond to that request, you use the response object to build your response. To expand on the people.json
example:
app.get('/people.json', function(request, response) {
// We want to set the content-type header so that the browser understands
// the content of the response.
response.contentType('application/json');
// Normally, the data is fetched from a database, but we can cheat:
var people = [
{ name: 'Dave', location: 'Atlanta' },
{ name: 'Santa Claus', location: 'North Pole' },
{ name: 'Man in the Moon', location: 'The Moon' }
];
// Since the request is for a JSON representation of the people, we
// should JSON serialize them. The built-in JSON.stringify() function
// does that.
var peopleJSON = JSON.stringify(people);
// Now, we can use the response object's send method to push that string
// of people JSON back to the browser in response to this request:
response.send(peopleJSON);
});
If you are generating new *.json or modifying existing josn file the use "indent" parameter for pretty view json format.
import json
responseData = json.loads(output)
with open('twitterData.json','w') as twitterDataFile:
json.dump(responseData, twitterDataFile, indent=4)
How to re-take control of the root user in MySQL.
DANGER: RISKY OPERATTION
Edit my.cnf
file using.
sudo vi /etc/my.cnf
Add line to mysqld block.*
skip-grant-tables
Save and exit.
Restart MySQL service.
service mysql restart
Check service status.
service mysql status
Connect to mysql.
mysql
Using main database.
use mysql;
Redefine user root password.
UPDATE user SET `authentication_string` = PASSWORD('myNuevoPassword') WHERE `User` = 'root';
Edit file my.cnf.
sudo vi /etc/my.cnf
Erase line.
skip-grant-tables
Save and exit.
Restart MySQL service.
service mysqld restart
Check service status.
service mysql status
Connect to database.
mysql -u root -p
Type new password when prompted.
This action is very dangerous, it allows anyone to connect to all databases with no restriction without a user and password. It must be used carefully and must be reverted quickly to avoid risks.
printf solution that accept separators of any length (based on @doesn't matters answer)
#/!bin/bash
foo=('foo bar' 'foo baz' 'bar baz')
sep=',' # can be of any length
bar=$(printf "${sep}%s" "${foo[@]}")
bar=${bar:${#sep}}
echo $bar
I believe you need subexpressions. If I remember right you can use the normal ()
brackets for subexpressions.
This part is From grep manual:
Back References and Subexpressions
The back-reference \n, where n is a single digit, matches the substring
previously matched by the nth parenthesized subexpression of the
regular expression.
Do something like ^[^(abc)]
should do the trick.
BLOB is for binary data (videos, images, documents, other)
CLOB is for large text data (text)
Maximum size on MySQL 2GB
Maximum size on Oracle 128TB